| 1 | //===- llvm/unittest/ADT/APFloat.cpp - APFloat unit tests ---------------------===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "llvm/ADT/APFloat.h" |
| 10 | #include "llvm/ADT/APSInt.h" |
| 11 | #include "llvm/ADT/Hashing.h" |
| 12 | #include "llvm/ADT/SmallVector.h" |
| 13 | #include "llvm/Support/Error.h" |
| 14 | #include "llvm/Support/FormatVariadic.h" |
| 15 | #include "gtest/gtest.h" |
| 16 | #include <cmath> |
| 17 | #include <ostream> |
| 18 | #include <string> |
| 19 | #include <tuple> |
| 20 | |
| 21 | using namespace llvm; |
| 22 | |
| 23 | static std::string convertToErrorFromString(StringRef Str) { |
| 24 | llvm::APFloat F(0.0); |
| 25 | auto StatusOrErr = |
| 26 | F.convertFromString(Str, llvm::APFloat::rmNearestTiesToEven); |
| 27 | EXPECT_TRUE(!StatusOrErr); |
| 28 | return toString(StatusOrErr.takeError()); |
| 29 | } |
| 30 | |
| 31 | static double convertToDoubleFromString(StringRef Str) { |
| 32 | llvm::APFloat F(0.0); |
| 33 | auto StatusOrErr = |
| 34 | F.convertFromString(Str, llvm::APFloat::rmNearestTiesToEven); |
| 35 | EXPECT_FALSE(!StatusOrErr); |
| 36 | consumeError(StatusOrErr.takeError()); |
| 37 | return F.convertToDouble(); |
| 38 | } |
| 39 | |
| 40 | static std::string convertToString(double d, unsigned Prec, unsigned Pad, |
| 41 | bool Tr = true) { |
| 42 | llvm::SmallVector<char, 100> Buffer; |
| 43 | llvm::APFloat F(d); |
| 44 | F.toString(Buffer, Prec, Pad, Tr); |
| 45 | return std::string(Buffer.data(), Buffer.size()); |
| 46 | } |
| 47 | |
| 48 | namespace { |
| 49 | |
| 50 | TEST(APFloatTest, isSignaling) { |
| 51 | // We test qNaN, -qNaN, +sNaN, -sNaN with and without payloads. *NOTE* The |
| 52 | // positive/negative distinction is included only since the getQNaN/getSNaN |
| 53 | // API provides the option. |
| 54 | APInt payload = APInt::getOneBitSet(4, 2); |
| 55 | EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle(), false).isSignaling()); |
| 56 | EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle(), true).isSignaling()); |
| 57 | EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle(), false, &payload).isSignaling()); |
| 58 | EXPECT_FALSE(APFloat::getQNaN(APFloat::IEEEsingle(), true, &payload).isSignaling()); |
| 59 | EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle(), false).isSignaling()); |
| 60 | EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle(), true).isSignaling()); |
| 61 | EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle(), false, &payload).isSignaling()); |
| 62 | EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle(), true, &payload).isSignaling()); |
| 63 | } |
| 64 | |
| 65 | TEST(APFloatTest, next) { |
| 66 | |
| 67 | APFloat test(APFloat::IEEEquad(), APFloat::uninitialized); |
| 68 | APFloat expected(APFloat::IEEEquad(), APFloat::uninitialized); |
| 69 | |
| 70 | // 1. Test Special Cases Values. |
| 71 | // |
| 72 | // Test all special values for nextUp and nextDown perscribed by IEEE-754R |
| 73 | // 2008. These are: |
| 74 | // 1. +inf |
| 75 | // 2. -inf |
| 76 | // 3. getLargest() |
| 77 | // 4. -getLargest() |
| 78 | // 5. getSmallest() |
| 79 | // 6. -getSmallest() |
| 80 | // 7. qNaN |
| 81 | // 8. sNaN |
| 82 | // 9. +0 |
| 83 | // 10. -0 |
| 84 | |
| 85 | // nextUp(+inf) = +inf. |
| 86 | test = APFloat::getInf(APFloat::IEEEquad(), false); |
| 87 | expected = APFloat::getInf(APFloat::IEEEquad(), false); |
| 88 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 89 | EXPECT_TRUE(test.isInfinity()); |
| 90 | EXPECT_TRUE(!test.isNegative()); |
| 91 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 92 | |
| 93 | // nextDown(+inf) = -nextUp(-inf) = -(-getLargest()) = getLargest() |
| 94 | test = APFloat::getInf(APFloat::IEEEquad(), false); |
| 95 | expected = APFloat::getLargest(APFloat::IEEEquad(), false); |
| 96 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 97 | EXPECT_TRUE(!test.isNegative()); |
| 98 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 99 | |
| 100 | // nextUp(-inf) = -getLargest() |
| 101 | test = APFloat::getInf(APFloat::IEEEquad(), true); |
| 102 | expected = APFloat::getLargest(APFloat::IEEEquad(), true); |
| 103 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 104 | EXPECT_TRUE(test.isNegative()); |
| 105 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 106 | |
| 107 | // nextDown(-inf) = -nextUp(+inf) = -(+inf) = -inf. |
| 108 | test = APFloat::getInf(APFloat::IEEEquad(), true); |
| 109 | expected = APFloat::getInf(APFloat::IEEEquad(), true); |
| 110 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 111 | EXPECT_TRUE(test.isInfinity() && test.isNegative()); |
| 112 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 113 | |
| 114 | // nextUp(getLargest()) = +inf |
| 115 | test = APFloat::getLargest(APFloat::IEEEquad(), false); |
| 116 | expected = APFloat::getInf(APFloat::IEEEquad(), false); |
| 117 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 118 | EXPECT_TRUE(test.isInfinity() && !test.isNegative()); |
| 119 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 120 | |
| 121 | // nextDown(getLargest()) = -nextUp(-getLargest()) |
| 122 | // = -(-getLargest() + inc) |
| 123 | // = getLargest() - inc. |
| 124 | test = APFloat::getLargest(APFloat::IEEEquad(), false); |
| 125 | expected = APFloat(APFloat::IEEEquad(), |
| 126 | "0x1.fffffffffffffffffffffffffffep+16383" ); |
| 127 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 128 | EXPECT_TRUE(!test.isInfinity() && !test.isNegative()); |
| 129 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 130 | |
| 131 | // nextUp(-getLargest()) = -getLargest() + inc. |
| 132 | test = APFloat::getLargest(APFloat::IEEEquad(), true); |
| 133 | expected = APFloat(APFloat::IEEEquad(), |
| 134 | "-0x1.fffffffffffffffffffffffffffep+16383" ); |
| 135 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 136 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 137 | |
| 138 | // nextDown(-getLargest()) = -nextUp(getLargest()) = -(inf) = -inf. |
| 139 | test = APFloat::getLargest(APFloat::IEEEquad(), true); |
| 140 | expected = APFloat::getInf(APFloat::IEEEquad(), true); |
| 141 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 142 | EXPECT_TRUE(test.isInfinity() && test.isNegative()); |
| 143 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 144 | |
| 145 | // nextUp(getSmallest()) = getSmallest() + inc. |
| 146 | test = APFloat(APFloat::IEEEquad(), "0x0.0000000000000000000000000001p-16382" ); |
| 147 | expected = APFloat(APFloat::IEEEquad(), |
| 148 | "0x0.0000000000000000000000000002p-16382" ); |
| 149 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 150 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 151 | |
| 152 | // nextDown(getSmallest()) = -nextUp(-getSmallest()) = -(-0) = +0. |
| 153 | test = APFloat(APFloat::IEEEquad(), "0x0.0000000000000000000000000001p-16382" ); |
| 154 | expected = APFloat::getZero(APFloat::IEEEquad(), false); |
| 155 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 156 | EXPECT_TRUE(test.isPosZero()); |
| 157 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 158 | |
| 159 | // nextUp(-getSmallest()) = -0. |
| 160 | test = APFloat(APFloat::IEEEquad(), "-0x0.0000000000000000000000000001p-16382" ); |
| 161 | expected = APFloat::getZero(APFloat::IEEEquad(), true); |
| 162 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 163 | EXPECT_TRUE(test.isNegZero()); |
| 164 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 165 | |
| 166 | // nextDown(-getSmallest()) = -nextUp(getSmallest()) = -getSmallest() - inc. |
| 167 | test = APFloat(APFloat::IEEEquad(), "-0x0.0000000000000000000000000001p-16382" ); |
| 168 | expected = APFloat(APFloat::IEEEquad(), |
| 169 | "-0x0.0000000000000000000000000002p-16382" ); |
| 170 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 171 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 172 | |
| 173 | // nextUp(qNaN) = qNaN |
| 174 | test = APFloat::getQNaN(APFloat::IEEEquad(), false); |
| 175 | expected = APFloat::getQNaN(APFloat::IEEEquad(), false); |
| 176 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 177 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 178 | |
| 179 | // nextDown(qNaN) = qNaN |
| 180 | test = APFloat::getQNaN(APFloat::IEEEquad(), false); |
| 181 | expected = APFloat::getQNaN(APFloat::IEEEquad(), false); |
| 182 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 183 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 184 | |
| 185 | // nextUp(sNaN) = qNaN |
| 186 | test = APFloat::getSNaN(APFloat::IEEEquad(), false); |
| 187 | expected = APFloat::getQNaN(APFloat::IEEEquad(), false); |
| 188 | EXPECT_EQ(test.next(false), APFloat::opInvalidOp); |
| 189 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 190 | |
| 191 | // nextDown(sNaN) = qNaN |
| 192 | test = APFloat::getSNaN(APFloat::IEEEquad(), false); |
| 193 | expected = APFloat::getQNaN(APFloat::IEEEquad(), false); |
| 194 | EXPECT_EQ(test.next(true), APFloat::opInvalidOp); |
| 195 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 196 | |
| 197 | // nextUp(+0) = +getSmallest() |
| 198 | test = APFloat::getZero(APFloat::IEEEquad(), false); |
| 199 | expected = APFloat::getSmallest(APFloat::IEEEquad(), false); |
| 200 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 201 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 202 | |
| 203 | // nextDown(+0) = -nextUp(-0) = -getSmallest() |
| 204 | test = APFloat::getZero(APFloat::IEEEquad(), false); |
| 205 | expected = APFloat::getSmallest(APFloat::IEEEquad(), true); |
| 206 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 207 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 208 | |
| 209 | // nextUp(-0) = +getSmallest() |
| 210 | test = APFloat::getZero(APFloat::IEEEquad(), true); |
| 211 | expected = APFloat::getSmallest(APFloat::IEEEquad(), false); |
| 212 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 213 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 214 | |
| 215 | // nextDown(-0) = -nextUp(0) = -getSmallest() |
| 216 | test = APFloat::getZero(APFloat::IEEEquad(), true); |
| 217 | expected = APFloat::getSmallest(APFloat::IEEEquad(), true); |
| 218 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 219 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 220 | |
| 221 | // 2. Binade Boundary Tests. |
| 222 | |
| 223 | // 2a. Test denormal <-> normal binade boundaries. |
| 224 | // * nextUp(+Largest Denormal) -> +Smallest Normal. |
| 225 | // * nextDown(-Largest Denormal) -> -Smallest Normal. |
| 226 | // * nextUp(-Smallest Normal) -> -Largest Denormal. |
| 227 | // * nextDown(+Smallest Normal) -> +Largest Denormal. |
| 228 | |
| 229 | // nextUp(+Largest Denormal) -> +Smallest Normal. |
| 230 | test = APFloat(APFloat::IEEEquad(), "0x0.ffffffffffffffffffffffffffffp-16382" ); |
| 231 | expected = APFloat(APFloat::IEEEquad(), |
| 232 | "0x1.0000000000000000000000000000p-16382" ); |
| 233 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 234 | EXPECT_FALSE(test.isDenormal()); |
| 235 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 236 | |
| 237 | // nextDown(-Largest Denormal) -> -Smallest Normal. |
| 238 | test = APFloat(APFloat::IEEEquad(), |
| 239 | "-0x0.ffffffffffffffffffffffffffffp-16382" ); |
| 240 | expected = APFloat(APFloat::IEEEquad(), |
| 241 | "-0x1.0000000000000000000000000000p-16382" ); |
| 242 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 243 | EXPECT_FALSE(test.isDenormal()); |
| 244 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 245 | |
| 246 | // nextUp(-Smallest Normal) -> -LargestDenormal. |
| 247 | test = APFloat(APFloat::IEEEquad(), |
| 248 | "-0x1.0000000000000000000000000000p-16382" ); |
| 249 | expected = APFloat(APFloat::IEEEquad(), |
| 250 | "-0x0.ffffffffffffffffffffffffffffp-16382" ); |
| 251 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 252 | EXPECT_TRUE(test.isDenormal()); |
| 253 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 254 | |
| 255 | // nextDown(+Smallest Normal) -> +Largest Denormal. |
| 256 | test = APFloat(APFloat::IEEEquad(), |
| 257 | "+0x1.0000000000000000000000000000p-16382" ); |
| 258 | expected = APFloat(APFloat::IEEEquad(), |
| 259 | "+0x0.ffffffffffffffffffffffffffffp-16382" ); |
| 260 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 261 | EXPECT_TRUE(test.isDenormal()); |
| 262 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 263 | |
| 264 | // 2b. Test normal <-> normal binade boundaries. |
| 265 | // * nextUp(-Normal Binade Boundary) -> -Normal Binade Boundary + 1. |
| 266 | // * nextDown(+Normal Binade Boundary) -> +Normal Binade Boundary - 1. |
| 267 | // * nextUp(+Normal Binade Boundary - 1) -> +Normal Binade Boundary. |
| 268 | // * nextDown(-Normal Binade Boundary + 1) -> -Normal Binade Boundary. |
| 269 | |
| 270 | // nextUp(-Normal Binade Boundary) -> -Normal Binade Boundary + 1. |
| 271 | test = APFloat(APFloat::IEEEquad(), "-0x1p+1" ); |
| 272 | expected = APFloat(APFloat::IEEEquad(), |
| 273 | "-0x1.ffffffffffffffffffffffffffffp+0" ); |
| 274 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 275 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 276 | |
| 277 | // nextDown(+Normal Binade Boundary) -> +Normal Binade Boundary - 1. |
| 278 | test = APFloat(APFloat::IEEEquad(), "0x1p+1" ); |
| 279 | expected = APFloat(APFloat::IEEEquad(), "0x1.ffffffffffffffffffffffffffffp+0" ); |
| 280 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 281 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 282 | |
| 283 | // nextUp(+Normal Binade Boundary - 1) -> +Normal Binade Boundary. |
| 284 | test = APFloat(APFloat::IEEEquad(), "0x1.ffffffffffffffffffffffffffffp+0" ); |
| 285 | expected = APFloat(APFloat::IEEEquad(), "0x1p+1" ); |
| 286 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 287 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 288 | |
| 289 | // nextDown(-Normal Binade Boundary + 1) -> -Normal Binade Boundary. |
| 290 | test = APFloat(APFloat::IEEEquad(), "-0x1.ffffffffffffffffffffffffffffp+0" ); |
| 291 | expected = APFloat(APFloat::IEEEquad(), "-0x1p+1" ); |
| 292 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 293 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 294 | |
| 295 | // 2c. Test using next at binade boundaries with a direction away from the |
| 296 | // binade boundary. Away from denormal <-> normal boundaries. |
| 297 | // |
| 298 | // This is to make sure that even though we are at a binade boundary, since |
| 299 | // we are rounding away, we do not trigger the binade boundary code. Thus we |
| 300 | // test: |
| 301 | // * nextUp(-Largest Denormal) -> -Largest Denormal + inc. |
| 302 | // * nextDown(+Largest Denormal) -> +Largest Denormal - inc. |
| 303 | // * nextUp(+Smallest Normal) -> +Smallest Normal + inc. |
| 304 | // * nextDown(-Smallest Normal) -> -Smallest Normal - inc. |
| 305 | |
| 306 | // nextUp(-Largest Denormal) -> -Largest Denormal + inc. |
| 307 | test = APFloat(APFloat::IEEEquad(), "-0x0.ffffffffffffffffffffffffffffp-16382" ); |
| 308 | expected = APFloat(APFloat::IEEEquad(), |
| 309 | "-0x0.fffffffffffffffffffffffffffep-16382" ); |
| 310 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 311 | EXPECT_TRUE(test.isDenormal()); |
| 312 | EXPECT_TRUE(test.isNegative()); |
| 313 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 314 | |
| 315 | // nextDown(+Largest Denormal) -> +Largest Denormal - inc. |
| 316 | test = APFloat(APFloat::IEEEquad(), "0x0.ffffffffffffffffffffffffffffp-16382" ); |
| 317 | expected = APFloat(APFloat::IEEEquad(), |
| 318 | "0x0.fffffffffffffffffffffffffffep-16382" ); |
| 319 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 320 | EXPECT_TRUE(test.isDenormal()); |
| 321 | EXPECT_TRUE(!test.isNegative()); |
| 322 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 323 | |
| 324 | // nextUp(+Smallest Normal) -> +Smallest Normal + inc. |
| 325 | test = APFloat(APFloat::IEEEquad(), "0x1.0000000000000000000000000000p-16382" ); |
| 326 | expected = APFloat(APFloat::IEEEquad(), |
| 327 | "0x1.0000000000000000000000000001p-16382" ); |
| 328 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 329 | EXPECT_TRUE(!test.isDenormal()); |
| 330 | EXPECT_TRUE(!test.isNegative()); |
| 331 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 332 | |
| 333 | // nextDown(-Smallest Normal) -> -Smallest Normal - inc. |
| 334 | test = APFloat(APFloat::IEEEquad(), "-0x1.0000000000000000000000000000p-16382" ); |
| 335 | expected = APFloat(APFloat::IEEEquad(), |
| 336 | "-0x1.0000000000000000000000000001p-16382" ); |
| 337 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 338 | EXPECT_TRUE(!test.isDenormal()); |
| 339 | EXPECT_TRUE(test.isNegative()); |
| 340 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 341 | |
| 342 | // 2d. Test values which cause our exponent to go to min exponent. This |
| 343 | // is to ensure that guards in the code to check for min exponent |
| 344 | // trigger properly. |
| 345 | // * nextUp(-0x1p-16381) -> -0x1.ffffffffffffffffffffffffffffp-16382 |
| 346 | // * nextDown(-0x1.ffffffffffffffffffffffffffffp-16382) -> |
| 347 | // -0x1p-16381 |
| 348 | // * nextUp(0x1.ffffffffffffffffffffffffffffp-16382) -> 0x1p-16382 |
| 349 | // * nextDown(0x1p-16382) -> 0x1.ffffffffffffffffffffffffffffp-16382 |
| 350 | |
| 351 | // nextUp(-0x1p-16381) -> -0x1.ffffffffffffffffffffffffffffp-16382 |
| 352 | test = APFloat(APFloat::IEEEquad(), "-0x1p-16381" ); |
| 353 | expected = APFloat(APFloat::IEEEquad(), |
| 354 | "-0x1.ffffffffffffffffffffffffffffp-16382" ); |
| 355 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 356 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 357 | |
| 358 | // nextDown(-0x1.ffffffffffffffffffffffffffffp-16382) -> |
| 359 | // -0x1p-16381 |
| 360 | test = APFloat(APFloat::IEEEquad(), "-0x1.ffffffffffffffffffffffffffffp-16382" ); |
| 361 | expected = APFloat(APFloat::IEEEquad(), "-0x1p-16381" ); |
| 362 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 363 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 364 | |
| 365 | // nextUp(0x1.ffffffffffffffffffffffffffffp-16382) -> 0x1p-16381 |
| 366 | test = APFloat(APFloat::IEEEquad(), "0x1.ffffffffffffffffffffffffffffp-16382" ); |
| 367 | expected = APFloat(APFloat::IEEEquad(), "0x1p-16381" ); |
| 368 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 369 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 370 | |
| 371 | // nextDown(0x1p-16381) -> 0x1.ffffffffffffffffffffffffffffp-16382 |
| 372 | test = APFloat(APFloat::IEEEquad(), "0x1p-16381" ); |
| 373 | expected = APFloat(APFloat::IEEEquad(), |
| 374 | "0x1.ffffffffffffffffffffffffffffp-16382" ); |
| 375 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 376 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 377 | |
| 378 | // 3. Now we test both denormal/normal computation which will not cause us |
| 379 | // to go across binade boundaries. Specifically we test: |
| 380 | // * nextUp(+Denormal) -> +Denormal. |
| 381 | // * nextDown(+Denormal) -> +Denormal. |
| 382 | // * nextUp(-Denormal) -> -Denormal. |
| 383 | // * nextDown(-Denormal) -> -Denormal. |
| 384 | // * nextUp(+Normal) -> +Normal. |
| 385 | // * nextDown(+Normal) -> +Normal. |
| 386 | // * nextUp(-Normal) -> -Normal. |
| 387 | // * nextDown(-Normal) -> -Normal. |
| 388 | |
| 389 | // nextUp(+Denormal) -> +Denormal. |
| 390 | test = APFloat(APFloat::IEEEquad(), |
| 391 | "0x0.ffffffffffffffffffffffff000cp-16382" ); |
| 392 | expected = APFloat(APFloat::IEEEquad(), |
| 393 | "0x0.ffffffffffffffffffffffff000dp-16382" ); |
| 394 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 395 | EXPECT_TRUE(test.isDenormal()); |
| 396 | EXPECT_TRUE(!test.isNegative()); |
| 397 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 398 | |
| 399 | // nextDown(+Denormal) -> +Denormal. |
| 400 | test = APFloat(APFloat::IEEEquad(), |
| 401 | "0x0.ffffffffffffffffffffffff000cp-16382" ); |
| 402 | expected = APFloat(APFloat::IEEEquad(), |
| 403 | "0x0.ffffffffffffffffffffffff000bp-16382" ); |
| 404 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 405 | EXPECT_TRUE(test.isDenormal()); |
| 406 | EXPECT_TRUE(!test.isNegative()); |
| 407 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 408 | |
| 409 | // nextUp(-Denormal) -> -Denormal. |
| 410 | test = APFloat(APFloat::IEEEquad(), |
| 411 | "-0x0.ffffffffffffffffffffffff000cp-16382" ); |
| 412 | expected = APFloat(APFloat::IEEEquad(), |
| 413 | "-0x0.ffffffffffffffffffffffff000bp-16382" ); |
| 414 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 415 | EXPECT_TRUE(test.isDenormal()); |
| 416 | EXPECT_TRUE(test.isNegative()); |
| 417 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 418 | |
| 419 | // nextDown(-Denormal) -> -Denormal |
| 420 | test = APFloat(APFloat::IEEEquad(), |
| 421 | "-0x0.ffffffffffffffffffffffff000cp-16382" ); |
| 422 | expected = APFloat(APFloat::IEEEquad(), |
| 423 | "-0x0.ffffffffffffffffffffffff000dp-16382" ); |
| 424 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 425 | EXPECT_TRUE(test.isDenormal()); |
| 426 | EXPECT_TRUE(test.isNegative()); |
| 427 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 428 | |
| 429 | // nextUp(+Normal) -> +Normal. |
| 430 | test = APFloat(APFloat::IEEEquad(), |
| 431 | "0x1.ffffffffffffffffffffffff000cp-16000" ); |
| 432 | expected = APFloat(APFloat::IEEEquad(), |
| 433 | "0x1.ffffffffffffffffffffffff000dp-16000" ); |
| 434 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 435 | EXPECT_TRUE(!test.isDenormal()); |
| 436 | EXPECT_TRUE(!test.isNegative()); |
| 437 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 438 | |
| 439 | // nextDown(+Normal) -> +Normal. |
| 440 | test = APFloat(APFloat::IEEEquad(), |
| 441 | "0x1.ffffffffffffffffffffffff000cp-16000" ); |
| 442 | expected = APFloat(APFloat::IEEEquad(), |
| 443 | "0x1.ffffffffffffffffffffffff000bp-16000" ); |
| 444 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 445 | EXPECT_TRUE(!test.isDenormal()); |
| 446 | EXPECT_TRUE(!test.isNegative()); |
| 447 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 448 | |
| 449 | // nextUp(-Normal) -> -Normal. |
| 450 | test = APFloat(APFloat::IEEEquad(), |
| 451 | "-0x1.ffffffffffffffffffffffff000cp-16000" ); |
| 452 | expected = APFloat(APFloat::IEEEquad(), |
| 453 | "-0x1.ffffffffffffffffffffffff000bp-16000" ); |
| 454 | EXPECT_EQ(test.next(false), APFloat::opOK); |
| 455 | EXPECT_TRUE(!test.isDenormal()); |
| 456 | EXPECT_TRUE(test.isNegative()); |
| 457 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 458 | |
| 459 | // nextDown(-Normal) -> -Normal. |
| 460 | test = APFloat(APFloat::IEEEquad(), |
| 461 | "-0x1.ffffffffffffffffffffffff000cp-16000" ); |
| 462 | expected = APFloat(APFloat::IEEEquad(), |
| 463 | "-0x1.ffffffffffffffffffffffff000dp-16000" ); |
| 464 | EXPECT_EQ(test.next(true), APFloat::opOK); |
| 465 | EXPECT_TRUE(!test.isDenormal()); |
| 466 | EXPECT_TRUE(test.isNegative()); |
| 467 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 468 | } |
| 469 | |
| 470 | TEST(APFloatTest, FMA) { |
| 471 | APFloat::roundingMode rdmd = APFloat::rmNearestTiesToEven; |
| 472 | |
| 473 | { |
| 474 | APFloat f1(14.5f); |
| 475 | APFloat f2(-14.5f); |
| 476 | APFloat f3(225.0f); |
| 477 | f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| 478 | EXPECT_EQ(14.75f, f1.convertToFloat()); |
| 479 | } |
| 480 | |
| 481 | { |
| 482 | APFloat Val2(2.0f); |
| 483 | APFloat f1((float)1.17549435e-38F); |
| 484 | APFloat f2((float)1.17549435e-38F); |
| 485 | f1.divide(Val2, rdmd); |
| 486 | f2.divide(Val2, rdmd); |
| 487 | APFloat f3(12.0f); |
| 488 | f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| 489 | EXPECT_EQ(12.0f, f1.convertToFloat()); |
| 490 | } |
| 491 | |
| 492 | // Test for correct zero sign when answer is exactly zero. |
| 493 | // fma(1.0, -1.0, 1.0) -> +ve 0. |
| 494 | { |
| 495 | APFloat f1(1.0); |
| 496 | APFloat f2(-1.0); |
| 497 | APFloat f3(1.0); |
| 498 | f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| 499 | EXPECT_TRUE(!f1.isNegative() && f1.isZero()); |
| 500 | } |
| 501 | |
| 502 | // Test for correct zero sign when answer is exactly zero and rounding towards |
| 503 | // negative. |
| 504 | // fma(1.0, -1.0, 1.0) -> +ve 0. |
| 505 | { |
| 506 | APFloat f1(1.0); |
| 507 | APFloat f2(-1.0); |
| 508 | APFloat f3(1.0); |
| 509 | f1.fusedMultiplyAdd(f2, f3, APFloat::rmTowardNegative); |
| 510 | EXPECT_TRUE(f1.isNegative() && f1.isZero()); |
| 511 | } |
| 512 | |
| 513 | // Test for correct (in this case -ve) sign when adding like signed zeros. |
| 514 | // Test fma(0.0, -0.0, -0.0) -> -ve 0. |
| 515 | { |
| 516 | APFloat f1(0.0); |
| 517 | APFloat f2(-0.0); |
| 518 | APFloat f3(-0.0); |
| 519 | f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| 520 | EXPECT_TRUE(f1.isNegative() && f1.isZero()); |
| 521 | } |
| 522 | |
| 523 | // Test -ve sign preservation when small negative results underflow. |
| 524 | { |
| 525 | APFloat f1(APFloat::IEEEdouble(), "-0x1p-1074" ); |
| 526 | APFloat f2(APFloat::IEEEdouble(), "+0x1p-1074" ); |
| 527 | APFloat f3(0.0); |
| 528 | f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| 529 | EXPECT_TRUE(f1.isNegative() && f1.isZero()); |
| 530 | } |
| 531 | |
| 532 | // Test x87 extended precision case from http://llvm.org/PR20728. |
| 533 | { |
| 534 | APFloat M1(APFloat::x87DoubleExtended(), 1); |
| 535 | APFloat M2(APFloat::x87DoubleExtended(), 1); |
| 536 | APFloat A(APFloat::x87DoubleExtended(), 3); |
| 537 | |
| 538 | bool losesInfo = false; |
| 539 | M1.fusedMultiplyAdd(M1, A, APFloat::rmNearestTiesToEven); |
| 540 | M1.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 541 | EXPECT_FALSE(losesInfo); |
| 542 | EXPECT_EQ(4.0f, M1.convertToFloat()); |
| 543 | } |
| 544 | |
| 545 | // Regression test that failed an assertion. |
| 546 | { |
| 547 | APFloat f1(-8.85242279E-41f); |
| 548 | APFloat f2(2.0f); |
| 549 | APFloat f3(8.85242279E-41f); |
| 550 | f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven); |
| 551 | EXPECT_EQ(-8.85242279E-41f, f1.convertToFloat()); |
| 552 | } |
| 553 | |
| 554 | // Test using only a single instance of APFloat. |
| 555 | { |
| 556 | APFloat F(1.5); |
| 557 | |
| 558 | F.fusedMultiplyAdd(F, F, APFloat::rmNearestTiesToEven); |
| 559 | EXPECT_EQ(3.75, F.convertToDouble()); |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | TEST(APFloatTest, MinNum) { |
| 564 | APFloat f1(1.0); |
| 565 | APFloat f2(2.0); |
| 566 | APFloat nan = APFloat::getNaN(APFloat::IEEEdouble()); |
| 567 | |
| 568 | EXPECT_EQ(1.0, minnum(f1, f2).convertToDouble()); |
| 569 | EXPECT_EQ(1.0, minnum(f2, f1).convertToDouble()); |
| 570 | EXPECT_EQ(1.0, minnum(f1, nan).convertToDouble()); |
| 571 | EXPECT_EQ(1.0, minnum(nan, f1).convertToDouble()); |
| 572 | } |
| 573 | |
| 574 | TEST(APFloatTest, MaxNum) { |
| 575 | APFloat f1(1.0); |
| 576 | APFloat f2(2.0); |
| 577 | APFloat nan = APFloat::getNaN(APFloat::IEEEdouble()); |
| 578 | |
| 579 | EXPECT_EQ(2.0, maxnum(f1, f2).convertToDouble()); |
| 580 | EXPECT_EQ(2.0, maxnum(f2, f1).convertToDouble()); |
| 581 | EXPECT_EQ(1.0, maxnum(f1, nan).convertToDouble()); |
| 582 | EXPECT_EQ(1.0, maxnum(nan, f1).convertToDouble()); |
| 583 | } |
| 584 | |
| 585 | TEST(APFloatTest, Minimum) { |
| 586 | APFloat f1(1.0); |
| 587 | APFloat f2(2.0); |
| 588 | APFloat zp(0.0); |
| 589 | APFloat zn(-0.0); |
| 590 | APFloat nan = APFloat::getNaN(APFloat::IEEEdouble()); |
| 591 | |
| 592 | EXPECT_EQ(1.0, minimum(f1, f2).convertToDouble()); |
| 593 | EXPECT_EQ(1.0, minimum(f2, f1).convertToDouble()); |
| 594 | EXPECT_EQ(-0.0, minimum(zp, zn).convertToDouble()); |
| 595 | EXPECT_EQ(-0.0, minimum(zn, zp).convertToDouble()); |
| 596 | EXPECT_TRUE(std::isnan(minimum(f1, nan).convertToDouble())); |
| 597 | EXPECT_TRUE(std::isnan(minimum(nan, f1).convertToDouble())); |
| 598 | } |
| 599 | |
| 600 | TEST(APFloatTest, Maximum) { |
| 601 | APFloat f1(1.0); |
| 602 | APFloat f2(2.0); |
| 603 | APFloat zp(0.0); |
| 604 | APFloat zn(-0.0); |
| 605 | APFloat nan = APFloat::getNaN(APFloat::IEEEdouble()); |
| 606 | |
| 607 | EXPECT_EQ(2.0, maximum(f1, f2).convertToDouble()); |
| 608 | EXPECT_EQ(2.0, maximum(f2, f1).convertToDouble()); |
| 609 | EXPECT_EQ(0.0, maximum(zp, zn).convertToDouble()); |
| 610 | EXPECT_EQ(0.0, maximum(zn, zp).convertToDouble()); |
| 611 | EXPECT_TRUE(std::isnan(maximum(f1, nan).convertToDouble())); |
| 612 | EXPECT_TRUE(std::isnan(maximum(nan, f1).convertToDouble())); |
| 613 | } |
| 614 | |
| 615 | TEST(APFloatTest, Denormal) { |
| 616 | APFloat::roundingMode rdmd = APFloat::rmNearestTiesToEven; |
| 617 | |
| 618 | // Test single precision |
| 619 | { |
| 620 | const char *MinNormalStr = "1.17549435082228750797e-38" ; |
| 621 | EXPECT_FALSE(APFloat(APFloat::IEEEsingle(), MinNormalStr).isDenormal()); |
| 622 | EXPECT_FALSE(APFloat(APFloat::IEEEsingle(), 0).isDenormal()); |
| 623 | |
| 624 | APFloat Val2(APFloat::IEEEsingle(), 2); |
| 625 | APFloat T(APFloat::IEEEsingle(), MinNormalStr); |
| 626 | T.divide(Val2, rdmd); |
| 627 | EXPECT_TRUE(T.isDenormal()); |
| 628 | } |
| 629 | |
| 630 | // Test double precision |
| 631 | { |
| 632 | const char *MinNormalStr = "2.22507385850720138309e-308" ; |
| 633 | EXPECT_FALSE(APFloat(APFloat::IEEEdouble(), MinNormalStr).isDenormal()); |
| 634 | EXPECT_FALSE(APFloat(APFloat::IEEEdouble(), 0).isDenormal()); |
| 635 | |
| 636 | APFloat Val2(APFloat::IEEEdouble(), 2); |
| 637 | APFloat T(APFloat::IEEEdouble(), MinNormalStr); |
| 638 | T.divide(Val2, rdmd); |
| 639 | EXPECT_TRUE(T.isDenormal()); |
| 640 | } |
| 641 | |
| 642 | // Test Intel double-ext |
| 643 | { |
| 644 | const char *MinNormalStr = "3.36210314311209350626e-4932" ; |
| 645 | EXPECT_FALSE(APFloat(APFloat::x87DoubleExtended(), MinNormalStr).isDenormal()); |
| 646 | EXPECT_FALSE(APFloat(APFloat::x87DoubleExtended(), 0).isDenormal()); |
| 647 | |
| 648 | APFloat Val2(APFloat::x87DoubleExtended(), 2); |
| 649 | APFloat T(APFloat::x87DoubleExtended(), MinNormalStr); |
| 650 | T.divide(Val2, rdmd); |
| 651 | EXPECT_TRUE(T.isDenormal()); |
| 652 | } |
| 653 | |
| 654 | // Test quadruple precision |
| 655 | { |
| 656 | const char *MinNormalStr = "3.36210314311209350626267781732175260e-4932" ; |
| 657 | EXPECT_FALSE(APFloat(APFloat::IEEEquad(), MinNormalStr).isDenormal()); |
| 658 | EXPECT_FALSE(APFloat(APFloat::IEEEquad(), 0).isDenormal()); |
| 659 | |
| 660 | APFloat Val2(APFloat::IEEEquad(), 2); |
| 661 | APFloat T(APFloat::IEEEquad(), MinNormalStr); |
| 662 | T.divide(Val2, rdmd); |
| 663 | EXPECT_TRUE(T.isDenormal()); |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | TEST(APFloatTest, Zero) { |
| 668 | EXPECT_EQ(0.0f, APFloat(0.0f).convertToFloat()); |
| 669 | EXPECT_EQ(-0.0f, APFloat(-0.0f).convertToFloat()); |
| 670 | EXPECT_TRUE(APFloat(-0.0f).isNegative()); |
| 671 | |
| 672 | EXPECT_EQ(0.0, APFloat(0.0).convertToDouble()); |
| 673 | EXPECT_EQ(-0.0, APFloat(-0.0).convertToDouble()); |
| 674 | EXPECT_TRUE(APFloat(-0.0).isNegative()); |
| 675 | } |
| 676 | |
| 677 | TEST(APFloatTest, DecimalStringsWithoutNullTerminators) { |
| 678 | // Make sure that we can parse strings without null terminators. |
| 679 | // rdar://14323230. |
| 680 | EXPECT_EQ(convertToDoubleFromString(StringRef("0.00" , 3)), 0.0); |
| 681 | EXPECT_EQ(convertToDoubleFromString(StringRef("0.01" , 3)), 0.0); |
| 682 | EXPECT_EQ(convertToDoubleFromString(StringRef("0.09" , 3)), 0.0); |
| 683 | EXPECT_EQ(convertToDoubleFromString(StringRef("0.095" , 4)), 0.09); |
| 684 | EXPECT_EQ(convertToDoubleFromString(StringRef("0.00e+3" , 7)), 0.00); |
| 685 | EXPECT_EQ(convertToDoubleFromString(StringRef("0e+3" , 4)), 0.00); |
| 686 | } |
| 687 | |
| 688 | TEST(APFloatTest, fromZeroDecimalString) { |
| 689 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0" ).convertToDouble()); |
| 690 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0" ).convertToDouble()); |
| 691 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0" ).convertToDouble()); |
| 692 | |
| 693 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0." ).convertToDouble()); |
| 694 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0." ).convertToDouble()); |
| 695 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0." ).convertToDouble()); |
| 696 | |
| 697 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), ".0" ).convertToDouble()); |
| 698 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+.0" ).convertToDouble()); |
| 699 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-.0" ).convertToDouble()); |
| 700 | |
| 701 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0.0" ).convertToDouble()); |
| 702 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0.0" ).convertToDouble()); |
| 703 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0.0" ).convertToDouble()); |
| 704 | |
| 705 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "00000." ).convertToDouble()); |
| 706 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+00000." ).convertToDouble()); |
| 707 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-00000." ).convertToDouble()); |
| 708 | |
| 709 | EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble(), ".00000" ).convertToDouble()); |
| 710 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+.00000" ).convertToDouble()); |
| 711 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-.00000" ).convertToDouble()); |
| 712 | |
| 713 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0000.00000" ).convertToDouble()); |
| 714 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0000.00000" ).convertToDouble()); |
| 715 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0000.00000" ).convertToDouble()); |
| 716 | } |
| 717 | |
| 718 | TEST(APFloatTest, fromZeroDecimalSingleExponentString) { |
| 719 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0e1" ).convertToDouble()); |
| 720 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0e1" ).convertToDouble()); |
| 721 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0e1" ).convertToDouble()); |
| 722 | |
| 723 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0e+1" ).convertToDouble()); |
| 724 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0e+1" ).convertToDouble()); |
| 725 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0e+1" ).convertToDouble()); |
| 726 | |
| 727 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0e-1" ).convertToDouble()); |
| 728 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0e-1" ).convertToDouble()); |
| 729 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0e-1" ).convertToDouble()); |
| 730 | |
| 731 | |
| 732 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0.e1" ).convertToDouble()); |
| 733 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0.e1" ).convertToDouble()); |
| 734 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0.e1" ).convertToDouble()); |
| 735 | |
| 736 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0.e+1" ).convertToDouble()); |
| 737 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0.e+1" ).convertToDouble()); |
| 738 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0.e+1" ).convertToDouble()); |
| 739 | |
| 740 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0.e-1" ).convertToDouble()); |
| 741 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0.e-1" ).convertToDouble()); |
| 742 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0.e-1" ).convertToDouble()); |
| 743 | |
| 744 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), ".0e1" ).convertToDouble()); |
| 745 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+.0e1" ).convertToDouble()); |
| 746 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-.0e1" ).convertToDouble()); |
| 747 | |
| 748 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), ".0e+1" ).convertToDouble()); |
| 749 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+.0e+1" ).convertToDouble()); |
| 750 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-.0e+1" ).convertToDouble()); |
| 751 | |
| 752 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), ".0e-1" ).convertToDouble()); |
| 753 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+.0e-1" ).convertToDouble()); |
| 754 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-.0e-1" ).convertToDouble()); |
| 755 | |
| 756 | |
| 757 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0.0e1" ).convertToDouble()); |
| 758 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0.0e1" ).convertToDouble()); |
| 759 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0.0e1" ).convertToDouble()); |
| 760 | |
| 761 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0.0e+1" ).convertToDouble()); |
| 762 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0.0e+1" ).convertToDouble()); |
| 763 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0.0e+1" ).convertToDouble()); |
| 764 | |
| 765 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0.0e-1" ).convertToDouble()); |
| 766 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0.0e-1" ).convertToDouble()); |
| 767 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0.0e-1" ).convertToDouble()); |
| 768 | |
| 769 | |
| 770 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "000.0000e1" ).convertToDouble()); |
| 771 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+000.0000e+1" ).convertToDouble()); |
| 772 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-000.0000e+1" ).convertToDouble()); |
| 773 | } |
| 774 | |
| 775 | TEST(APFloatTest, fromZeroDecimalLargeExponentString) { |
| 776 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0e1234" ).convertToDouble()); |
| 777 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0e1234" ).convertToDouble()); |
| 778 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0e1234" ).convertToDouble()); |
| 779 | |
| 780 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0e+1234" ).convertToDouble()); |
| 781 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0e+1234" ).convertToDouble()); |
| 782 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0e+1234" ).convertToDouble()); |
| 783 | |
| 784 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0e-1234" ).convertToDouble()); |
| 785 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0e-1234" ).convertToDouble()); |
| 786 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0e-1234" ).convertToDouble()); |
| 787 | |
| 788 | EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble(), "000.0000e1234" ).convertToDouble()); |
| 789 | EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble(), "000.0000e-1234" ).convertToDouble()); |
| 790 | |
| 791 | EXPECT_EQ(0.0, APFloat(APFloat::IEEEdouble(), StringRef("0e1234" "\0" "2" , 6)).convertToDouble()); |
| 792 | } |
| 793 | |
| 794 | TEST(APFloatTest, fromZeroHexadecimalString) { |
| 795 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0p1" ).convertToDouble()); |
| 796 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0p1" ).convertToDouble()); |
| 797 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0p1" ).convertToDouble()); |
| 798 | |
| 799 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0p+1" ).convertToDouble()); |
| 800 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0p+1" ).convertToDouble()); |
| 801 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0p+1" ).convertToDouble()); |
| 802 | |
| 803 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0p-1" ).convertToDouble()); |
| 804 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0p-1" ).convertToDouble()); |
| 805 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0p-1" ).convertToDouble()); |
| 806 | |
| 807 | |
| 808 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.p1" ).convertToDouble()); |
| 809 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0.p1" ).convertToDouble()); |
| 810 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0.p1" ).convertToDouble()); |
| 811 | |
| 812 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.p+1" ).convertToDouble()); |
| 813 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0.p+1" ).convertToDouble()); |
| 814 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0.p+1" ).convertToDouble()); |
| 815 | |
| 816 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.p-1" ).convertToDouble()); |
| 817 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0.p-1" ).convertToDouble()); |
| 818 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0.p-1" ).convertToDouble()); |
| 819 | |
| 820 | |
| 821 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x.0p1" ).convertToDouble()); |
| 822 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x.0p1" ).convertToDouble()); |
| 823 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x.0p1" ).convertToDouble()); |
| 824 | |
| 825 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x.0p+1" ).convertToDouble()); |
| 826 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x.0p+1" ).convertToDouble()); |
| 827 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x.0p+1" ).convertToDouble()); |
| 828 | |
| 829 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x.0p-1" ).convertToDouble()); |
| 830 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x.0p-1" ).convertToDouble()); |
| 831 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x.0p-1" ).convertToDouble()); |
| 832 | |
| 833 | |
| 834 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.0p1" ).convertToDouble()); |
| 835 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0.0p1" ).convertToDouble()); |
| 836 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0.0p1" ).convertToDouble()); |
| 837 | |
| 838 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.0p+1" ).convertToDouble()); |
| 839 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0.0p+1" ).convertToDouble()); |
| 840 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0.0p+1" ).convertToDouble()); |
| 841 | |
| 842 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.0p-1" ).convertToDouble()); |
| 843 | EXPECT_EQ(+0.0, APFloat(APFloat::IEEEdouble(), "+0x0.0p-1" ).convertToDouble()); |
| 844 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0.0p-1" ).convertToDouble()); |
| 845 | |
| 846 | |
| 847 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x00000.p1" ).convertToDouble()); |
| 848 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0000.00000p1" ).convertToDouble()); |
| 849 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x.00000p1" ).convertToDouble()); |
| 850 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.p1" ).convertToDouble()); |
| 851 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0p1234" ).convertToDouble()); |
| 852 | EXPECT_EQ(-0.0, APFloat(APFloat::IEEEdouble(), "-0x0p1234" ).convertToDouble()); |
| 853 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x00000.p1234" ).convertToDouble()); |
| 854 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0000.00000p1234" ).convertToDouble()); |
| 855 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x.00000p1234" ).convertToDouble()); |
| 856 | EXPECT_EQ( 0.0, APFloat(APFloat::IEEEdouble(), "0x0.p1234" ).convertToDouble()); |
| 857 | } |
| 858 | |
| 859 | TEST(APFloatTest, fromDecimalString) { |
| 860 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1" ).convertToDouble()); |
| 861 | EXPECT_EQ(2.0, APFloat(APFloat::IEEEdouble(), "2." ).convertToDouble()); |
| 862 | EXPECT_EQ(0.5, APFloat(APFloat::IEEEdouble(), ".5" ).convertToDouble()); |
| 863 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1.0" ).convertToDouble()); |
| 864 | EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble(), "-2" ).convertToDouble()); |
| 865 | EXPECT_EQ(-4.0, APFloat(APFloat::IEEEdouble(), "-4." ).convertToDouble()); |
| 866 | EXPECT_EQ(-0.5, APFloat(APFloat::IEEEdouble(), "-.5" ).convertToDouble()); |
| 867 | EXPECT_EQ(-1.5, APFloat(APFloat::IEEEdouble(), "-1.5" ).convertToDouble()); |
| 868 | EXPECT_EQ(1.25e12, APFloat(APFloat::IEEEdouble(), "1.25e12" ).convertToDouble()); |
| 869 | EXPECT_EQ(1.25e+12, APFloat(APFloat::IEEEdouble(), "1.25e+12" ).convertToDouble()); |
| 870 | EXPECT_EQ(1.25e-12, APFloat(APFloat::IEEEdouble(), "1.25e-12" ).convertToDouble()); |
| 871 | EXPECT_EQ(1024.0, APFloat(APFloat::IEEEdouble(), "1024." ).convertToDouble()); |
| 872 | EXPECT_EQ(1024.05, APFloat(APFloat::IEEEdouble(), "1024.05000" ).convertToDouble()); |
| 873 | EXPECT_EQ(0.05, APFloat(APFloat::IEEEdouble(), ".05000" ).convertToDouble()); |
| 874 | EXPECT_EQ(2.0, APFloat(APFloat::IEEEdouble(), "2." ).convertToDouble()); |
| 875 | EXPECT_EQ(2.0e2, APFloat(APFloat::IEEEdouble(), "2.e2" ).convertToDouble()); |
| 876 | EXPECT_EQ(2.0e+2, APFloat(APFloat::IEEEdouble(), "2.e+2" ).convertToDouble()); |
| 877 | EXPECT_EQ(2.0e-2, APFloat(APFloat::IEEEdouble(), "2.e-2" ).convertToDouble()); |
| 878 | EXPECT_EQ(2.05e2, APFloat(APFloat::IEEEdouble(), "002.05000e2" ).convertToDouble()); |
| 879 | EXPECT_EQ(2.05e+2, APFloat(APFloat::IEEEdouble(), "002.05000e+2" ).convertToDouble()); |
| 880 | EXPECT_EQ(2.05e-2, APFloat(APFloat::IEEEdouble(), "002.05000e-2" ).convertToDouble()); |
| 881 | EXPECT_EQ(2.05e12, APFloat(APFloat::IEEEdouble(), "002.05000e12" ).convertToDouble()); |
| 882 | EXPECT_EQ(2.05e+12, APFloat(APFloat::IEEEdouble(), "002.05000e+12" ).convertToDouble()); |
| 883 | EXPECT_EQ(2.05e-12, APFloat(APFloat::IEEEdouble(), "002.05000e-12" ).convertToDouble()); |
| 884 | |
| 885 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1e" ).convertToDouble()); |
| 886 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "+1e" ).convertToDouble()); |
| 887 | EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble(), "-1e" ).convertToDouble()); |
| 888 | |
| 889 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1.e" ).convertToDouble()); |
| 890 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "+1.e" ).convertToDouble()); |
| 891 | EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble(), "-1.e" ).convertToDouble()); |
| 892 | |
| 893 | EXPECT_EQ(0.1, APFloat(APFloat::IEEEdouble(), ".1e" ).convertToDouble()); |
| 894 | EXPECT_EQ(0.1, APFloat(APFloat::IEEEdouble(), "+.1e" ).convertToDouble()); |
| 895 | EXPECT_EQ(-0.1, APFloat(APFloat::IEEEdouble(), "-.1e" ).convertToDouble()); |
| 896 | |
| 897 | EXPECT_EQ(1.1, APFloat(APFloat::IEEEdouble(), "1.1e" ).convertToDouble()); |
| 898 | EXPECT_EQ(1.1, APFloat(APFloat::IEEEdouble(), "+1.1e" ).convertToDouble()); |
| 899 | EXPECT_EQ(-1.1, APFloat(APFloat::IEEEdouble(), "-1.1e" ).convertToDouble()); |
| 900 | |
| 901 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1e+" ).convertToDouble()); |
| 902 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1e-" ).convertToDouble()); |
| 903 | |
| 904 | EXPECT_EQ(0.1, APFloat(APFloat::IEEEdouble(), ".1e" ).convertToDouble()); |
| 905 | EXPECT_EQ(0.1, APFloat(APFloat::IEEEdouble(), ".1e+" ).convertToDouble()); |
| 906 | EXPECT_EQ(0.1, APFloat(APFloat::IEEEdouble(), ".1e-" ).convertToDouble()); |
| 907 | |
| 908 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1.0e" ).convertToDouble()); |
| 909 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1.0e+" ).convertToDouble()); |
| 910 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "1.0e-" ).convertToDouble()); |
| 911 | |
| 912 | // These are "carefully selected" to overflow the fast log-base |
| 913 | // calculations in APFloat.cpp |
| 914 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "99e99999" ).isInfinity()); |
| 915 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-99e99999" ).isInfinity()); |
| 916 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "1e-99999" ).isPosZero()); |
| 917 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-1e-99999" ).isNegZero()); |
| 918 | |
| 919 | EXPECT_EQ(2.71828, convertToDoubleFromString("2.71828" )); |
| 920 | } |
| 921 | |
| 922 | TEST(APFloatTest, fromStringSpecials) { |
| 923 | const fltSemantics &Sem = APFloat::IEEEdouble(); |
| 924 | const unsigned Precision = 53; |
| 925 | const unsigned PayloadBits = Precision - 2; |
| 926 | uint64_t PayloadMask = (uint64_t(1) << PayloadBits) - uint64_t(1); |
| 927 | |
| 928 | uint64_t NaNPayloads[] = { |
| 929 | 0, |
| 930 | 1, |
| 931 | 123, |
| 932 | 0xDEADBEEF, |
| 933 | uint64_t(-2), |
| 934 | uint64_t(1) << PayloadBits, // overflow bit |
| 935 | uint64_t(1) << (PayloadBits - 1), // signaling bit |
| 936 | uint64_t(1) << (PayloadBits - 2) // highest possible bit |
| 937 | }; |
| 938 | |
| 939 | // Convert payload integer to decimal string representation. |
| 940 | std::string NaNPayloadDecStrings[array_lengthof(NaNPayloads)]; |
| 941 | for (size_t I = 0; I < array_lengthof(NaNPayloads); ++I) |
| 942 | NaNPayloadDecStrings[I] = utostr(NaNPayloads[I]); |
| 943 | |
| 944 | // Convert payload integer to hexadecimal string representation. |
| 945 | std::string NaNPayloadHexStrings[array_lengthof(NaNPayloads)]; |
| 946 | for (size_t I = 0; I < array_lengthof(NaNPayloads); ++I) |
| 947 | NaNPayloadHexStrings[I] = "0x" + utohexstr(NaNPayloads[I]); |
| 948 | |
| 949 | // Fix payloads to expected result. |
| 950 | for (uint64_t &Payload : NaNPayloads) |
| 951 | Payload &= PayloadMask; |
| 952 | |
| 953 | // Signaling NaN must have a non-zero payload. In case a zero payload is |
| 954 | // requested, a default arbitrary payload is set instead. Save this payload |
| 955 | // for testing. |
| 956 | const uint64_t SNaNDefaultPayload = |
| 957 | APFloat::getSNaN(Sem).bitcastToAPInt().getZExtValue() & PayloadMask; |
| 958 | |
| 959 | // Negative sign prefix (or none - for positive). |
| 960 | const char Signs[] = {0, '-'}; |
| 961 | |
| 962 | // "Signaling" prefix (or none - for "Quiet"). |
| 963 | const char NaNTypes[] = {0, 's', 'S'}; |
| 964 | |
| 965 | const StringRef NaNStrings[] = {"nan" , "NaN" }; |
| 966 | for (StringRef NaNStr : NaNStrings) |
| 967 | for (char TypeChar : NaNTypes) { |
| 968 | bool Signaling = (TypeChar == 's' || TypeChar == 'S'); |
| 969 | |
| 970 | for (size_t J = 0; J < array_lengthof(NaNPayloads); ++J) { |
| 971 | uint64_t Payload = (Signaling && !NaNPayloads[J]) ? SNaNDefaultPayload |
| 972 | : NaNPayloads[J]; |
| 973 | std::string &PayloadDec = NaNPayloadDecStrings[J]; |
| 974 | std::string &PayloadHex = NaNPayloadHexStrings[J]; |
| 975 | |
| 976 | for (char SignChar : Signs) { |
| 977 | bool Negative = (SignChar == '-'); |
| 978 | |
| 979 | std::string TestStrings[5]; |
| 980 | size_t NumTestStrings = 0; |
| 981 | |
| 982 | std::string Prefix; |
| 983 | if (SignChar) |
| 984 | Prefix += SignChar; |
| 985 | if (TypeChar) |
| 986 | Prefix += TypeChar; |
| 987 | Prefix += NaNStr; |
| 988 | |
| 989 | // Test without any paylod. |
| 990 | if (!Payload) |
| 991 | TestStrings[NumTestStrings++] = Prefix; |
| 992 | |
| 993 | // Test with the payload as a suffix. |
| 994 | TestStrings[NumTestStrings++] = Prefix + PayloadDec; |
| 995 | TestStrings[NumTestStrings++] = Prefix + PayloadHex; |
| 996 | |
| 997 | // Test with the payload inside parentheses. |
| 998 | TestStrings[NumTestStrings++] = Prefix + '(' + PayloadDec + ')'; |
| 999 | TestStrings[NumTestStrings++] = Prefix + '(' + PayloadHex + ')'; |
| 1000 | |
| 1001 | for (size_t K = 0; K < NumTestStrings; ++K) { |
| 1002 | StringRef TestStr = TestStrings[K]; |
| 1003 | |
| 1004 | APFloat F(Sem); |
| 1005 | bool HasError = !F.convertFromString( |
| 1006 | TestStr, llvm::APFloat::rmNearestTiesToEven); |
| 1007 | EXPECT_FALSE(HasError); |
| 1008 | EXPECT_TRUE(F.isNaN()); |
| 1009 | EXPECT_EQ(Signaling, F.isSignaling()); |
| 1010 | EXPECT_EQ(Negative, F.isNegative()); |
| 1011 | uint64_t PayloadResult = |
| 1012 | F.bitcastToAPInt().getZExtValue() & PayloadMask; |
| 1013 | EXPECT_EQ(Payload, PayloadResult); |
| 1014 | } |
| 1015 | } |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | const StringRef InfStrings[] = {"inf" , "INFINITY" , "+Inf" , |
| 1020 | "-inf" , "-INFINITY" , "-Inf" }; |
| 1021 | for (StringRef InfStr : InfStrings) { |
| 1022 | bool Negative = InfStr.front() == '-'; |
| 1023 | |
| 1024 | APFloat F(Sem); |
| 1025 | bool HasError = |
| 1026 | !F.convertFromString(InfStr, llvm::APFloat::rmNearestTiesToEven); |
| 1027 | EXPECT_FALSE(HasError); |
| 1028 | EXPECT_TRUE(F.isInfinity()); |
| 1029 | EXPECT_EQ(Negative, F.isNegative()); |
| 1030 | uint64_t PayloadResult = F.bitcastToAPInt().getZExtValue() & PayloadMask; |
| 1031 | EXPECT_EQ(UINT64_C(0), PayloadResult); |
| 1032 | } |
| 1033 | } |
| 1034 | |
| 1035 | TEST(APFloatTest, fromToStringSpecials) { |
| 1036 | auto expects = [] (const char *first, const char *second) { |
| 1037 | std::string roundtrip = convertToString(convertToDoubleFromString(second), 0, 3); |
| 1038 | EXPECT_STREQ(first, roundtrip.c_str()); |
| 1039 | }; |
| 1040 | expects("+Inf" , "+Inf" ); |
| 1041 | expects("+Inf" , "INFINITY" ); |
| 1042 | expects("+Inf" , "inf" ); |
| 1043 | expects("-Inf" , "-Inf" ); |
| 1044 | expects("-Inf" , "-INFINITY" ); |
| 1045 | expects("-Inf" , "-inf" ); |
| 1046 | expects("NaN" , "NaN" ); |
| 1047 | expects("NaN" , "nan" ); |
| 1048 | expects("NaN" , "-NaN" ); |
| 1049 | expects("NaN" , "-nan" ); |
| 1050 | } |
| 1051 | |
| 1052 | TEST(APFloatTest, fromHexadecimalString) { |
| 1053 | EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble(), "0x1p0" ).convertToDouble()); |
| 1054 | EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble(), "+0x1p0" ).convertToDouble()); |
| 1055 | EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble(), "-0x1p0" ).convertToDouble()); |
| 1056 | |
| 1057 | EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble(), "0x1p+0" ).convertToDouble()); |
| 1058 | EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble(), "+0x1p+0" ).convertToDouble()); |
| 1059 | EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble(), "-0x1p+0" ).convertToDouble()); |
| 1060 | |
| 1061 | EXPECT_EQ( 1.0, APFloat(APFloat::IEEEdouble(), "0x1p-0" ).convertToDouble()); |
| 1062 | EXPECT_EQ(+1.0, APFloat(APFloat::IEEEdouble(), "+0x1p-0" ).convertToDouble()); |
| 1063 | EXPECT_EQ(-1.0, APFloat(APFloat::IEEEdouble(), "-0x1p-0" ).convertToDouble()); |
| 1064 | |
| 1065 | |
| 1066 | EXPECT_EQ( 2.0, APFloat(APFloat::IEEEdouble(), "0x1p1" ).convertToDouble()); |
| 1067 | EXPECT_EQ(+2.0, APFloat(APFloat::IEEEdouble(), "+0x1p1" ).convertToDouble()); |
| 1068 | EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble(), "-0x1p1" ).convertToDouble()); |
| 1069 | |
| 1070 | EXPECT_EQ( 2.0, APFloat(APFloat::IEEEdouble(), "0x1p+1" ).convertToDouble()); |
| 1071 | EXPECT_EQ(+2.0, APFloat(APFloat::IEEEdouble(), "+0x1p+1" ).convertToDouble()); |
| 1072 | EXPECT_EQ(-2.0, APFloat(APFloat::IEEEdouble(), "-0x1p+1" ).convertToDouble()); |
| 1073 | |
| 1074 | EXPECT_EQ( 0.5, APFloat(APFloat::IEEEdouble(), "0x1p-1" ).convertToDouble()); |
| 1075 | EXPECT_EQ(+0.5, APFloat(APFloat::IEEEdouble(), "+0x1p-1" ).convertToDouble()); |
| 1076 | EXPECT_EQ(-0.5, APFloat(APFloat::IEEEdouble(), "-0x1p-1" ).convertToDouble()); |
| 1077 | |
| 1078 | |
| 1079 | EXPECT_EQ( 3.0, APFloat(APFloat::IEEEdouble(), "0x1.8p1" ).convertToDouble()); |
| 1080 | EXPECT_EQ(+3.0, APFloat(APFloat::IEEEdouble(), "+0x1.8p1" ).convertToDouble()); |
| 1081 | EXPECT_EQ(-3.0, APFloat(APFloat::IEEEdouble(), "-0x1.8p1" ).convertToDouble()); |
| 1082 | |
| 1083 | EXPECT_EQ( 3.0, APFloat(APFloat::IEEEdouble(), "0x1.8p+1" ).convertToDouble()); |
| 1084 | EXPECT_EQ(+3.0, APFloat(APFloat::IEEEdouble(), "+0x1.8p+1" ).convertToDouble()); |
| 1085 | EXPECT_EQ(-3.0, APFloat(APFloat::IEEEdouble(), "-0x1.8p+1" ).convertToDouble()); |
| 1086 | |
| 1087 | EXPECT_EQ( 0.75, APFloat(APFloat::IEEEdouble(), "0x1.8p-1" ).convertToDouble()); |
| 1088 | EXPECT_EQ(+0.75, APFloat(APFloat::IEEEdouble(), "+0x1.8p-1" ).convertToDouble()); |
| 1089 | EXPECT_EQ(-0.75, APFloat(APFloat::IEEEdouble(), "-0x1.8p-1" ).convertToDouble()); |
| 1090 | |
| 1091 | |
| 1092 | EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble(), "0x1000.000p1" ).convertToDouble()); |
| 1093 | EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble(), "+0x1000.000p1" ).convertToDouble()); |
| 1094 | EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble(), "-0x1000.000p1" ).convertToDouble()); |
| 1095 | |
| 1096 | EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble(), "0x1000.000p+1" ).convertToDouble()); |
| 1097 | EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble(), "+0x1000.000p+1" ).convertToDouble()); |
| 1098 | EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble(), "-0x1000.000p+1" ).convertToDouble()); |
| 1099 | |
| 1100 | EXPECT_EQ( 2048.0, APFloat(APFloat::IEEEdouble(), "0x1000.000p-1" ).convertToDouble()); |
| 1101 | EXPECT_EQ(+2048.0, APFloat(APFloat::IEEEdouble(), "+0x1000.000p-1" ).convertToDouble()); |
| 1102 | EXPECT_EQ(-2048.0, APFloat(APFloat::IEEEdouble(), "-0x1000.000p-1" ).convertToDouble()); |
| 1103 | |
| 1104 | |
| 1105 | EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble(), "0x1000p1" ).convertToDouble()); |
| 1106 | EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble(), "+0x1000p1" ).convertToDouble()); |
| 1107 | EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble(), "-0x1000p1" ).convertToDouble()); |
| 1108 | |
| 1109 | EXPECT_EQ( 8192.0, APFloat(APFloat::IEEEdouble(), "0x1000p+1" ).convertToDouble()); |
| 1110 | EXPECT_EQ(+8192.0, APFloat(APFloat::IEEEdouble(), "+0x1000p+1" ).convertToDouble()); |
| 1111 | EXPECT_EQ(-8192.0, APFloat(APFloat::IEEEdouble(), "-0x1000p+1" ).convertToDouble()); |
| 1112 | |
| 1113 | EXPECT_EQ( 2048.0, APFloat(APFloat::IEEEdouble(), "0x1000p-1" ).convertToDouble()); |
| 1114 | EXPECT_EQ(+2048.0, APFloat(APFloat::IEEEdouble(), "+0x1000p-1" ).convertToDouble()); |
| 1115 | EXPECT_EQ(-2048.0, APFloat(APFloat::IEEEdouble(), "-0x1000p-1" ).convertToDouble()); |
| 1116 | |
| 1117 | |
| 1118 | EXPECT_EQ( 16384.0, APFloat(APFloat::IEEEdouble(), "0x10p10" ).convertToDouble()); |
| 1119 | EXPECT_EQ(+16384.0, APFloat(APFloat::IEEEdouble(), "+0x10p10" ).convertToDouble()); |
| 1120 | EXPECT_EQ(-16384.0, APFloat(APFloat::IEEEdouble(), "-0x10p10" ).convertToDouble()); |
| 1121 | |
| 1122 | EXPECT_EQ( 16384.0, APFloat(APFloat::IEEEdouble(), "0x10p+10" ).convertToDouble()); |
| 1123 | EXPECT_EQ(+16384.0, APFloat(APFloat::IEEEdouble(), "+0x10p+10" ).convertToDouble()); |
| 1124 | EXPECT_EQ(-16384.0, APFloat(APFloat::IEEEdouble(), "-0x10p+10" ).convertToDouble()); |
| 1125 | |
| 1126 | EXPECT_EQ( 0.015625, APFloat(APFloat::IEEEdouble(), "0x10p-10" ).convertToDouble()); |
| 1127 | EXPECT_EQ(+0.015625, APFloat(APFloat::IEEEdouble(), "+0x10p-10" ).convertToDouble()); |
| 1128 | EXPECT_EQ(-0.015625, APFloat(APFloat::IEEEdouble(), "-0x10p-10" ).convertToDouble()); |
| 1129 | |
| 1130 | EXPECT_EQ(1.0625, APFloat(APFloat::IEEEdouble(), "0x1.1p0" ).convertToDouble()); |
| 1131 | EXPECT_EQ(1.0, APFloat(APFloat::IEEEdouble(), "0x1p0" ).convertToDouble()); |
| 1132 | |
| 1133 | EXPECT_EQ(convertToDoubleFromString("0x1p-150" ), |
| 1134 | convertToDoubleFromString("+0x800000000000000001.p-221" )); |
| 1135 | EXPECT_EQ(2251799813685248.5, |
| 1136 | convertToDoubleFromString("0x80000000000004000000.010p-28" )); |
| 1137 | } |
| 1138 | |
| 1139 | TEST(APFloatTest, toString) { |
| 1140 | ASSERT_EQ("10" , convertToString(10.0, 6, 3)); |
| 1141 | ASSERT_EQ("1.0E+1" , convertToString(10.0, 6, 0)); |
| 1142 | ASSERT_EQ("10100" , convertToString(1.01E+4, 5, 2)); |
| 1143 | ASSERT_EQ("1.01E+4" , convertToString(1.01E+4, 4, 2)); |
| 1144 | ASSERT_EQ("1.01E+4" , convertToString(1.01E+4, 5, 1)); |
| 1145 | ASSERT_EQ("0.0101" , convertToString(1.01E-2, 5, 2)); |
| 1146 | ASSERT_EQ("0.0101" , convertToString(1.01E-2, 4, 2)); |
| 1147 | ASSERT_EQ("1.01E-2" , convertToString(1.01E-2, 5, 1)); |
| 1148 | ASSERT_EQ("0.78539816339744828" , convertToString(0.78539816339744830961, 0, 3)); |
| 1149 | ASSERT_EQ("4.9406564584124654E-324" , convertToString(4.9406564584124654e-324, 0, 3)); |
| 1150 | ASSERT_EQ("873.18340000000001" , convertToString(873.1834, 0, 1)); |
| 1151 | ASSERT_EQ("8.7318340000000001E+2" , convertToString(873.1834, 0, 0)); |
| 1152 | ASSERT_EQ("1.7976931348623157E+308" , convertToString(1.7976931348623157E+308, 0, 0)); |
| 1153 | ASSERT_EQ("10" , convertToString(10.0, 6, 3, false)); |
| 1154 | ASSERT_EQ("1.000000e+01" , convertToString(10.0, 6, 0, false)); |
| 1155 | ASSERT_EQ("10100" , convertToString(1.01E+4, 5, 2, false)); |
| 1156 | ASSERT_EQ("1.0100e+04" , convertToString(1.01E+4, 4, 2, false)); |
| 1157 | ASSERT_EQ("1.01000e+04" , convertToString(1.01E+4, 5, 1, false)); |
| 1158 | ASSERT_EQ("0.0101" , convertToString(1.01E-2, 5, 2, false)); |
| 1159 | ASSERT_EQ("0.0101" , convertToString(1.01E-2, 4, 2, false)); |
| 1160 | ASSERT_EQ("1.01000e-02" , convertToString(1.01E-2, 5, 1, false)); |
| 1161 | ASSERT_EQ("0.78539816339744828" , |
| 1162 | convertToString(0.78539816339744830961, 0, 3, false)); |
| 1163 | ASSERT_EQ("4.94065645841246540e-324" , |
| 1164 | convertToString(4.9406564584124654e-324, 0, 3, false)); |
| 1165 | ASSERT_EQ("873.18340000000001" , convertToString(873.1834, 0, 1, false)); |
| 1166 | ASSERT_EQ("8.73183400000000010e+02" , convertToString(873.1834, 0, 0, false)); |
| 1167 | ASSERT_EQ("1.79769313486231570e+308" , |
| 1168 | convertToString(1.7976931348623157E+308, 0, 0, false)); |
| 1169 | |
| 1170 | { |
| 1171 | SmallString<64> Str; |
| 1172 | APFloat UnnormalZero(APFloat::x87DoubleExtended(), APInt(80, {0, 1})); |
| 1173 | UnnormalZero.toString(Str); |
| 1174 | ASSERT_EQ("NaN" , Str); |
| 1175 | } |
| 1176 | } |
| 1177 | |
| 1178 | TEST(APFloatTest, toInteger) { |
| 1179 | bool isExact = false; |
| 1180 | APSInt result(5, /*isUnsigned=*/true); |
| 1181 | |
| 1182 | EXPECT_EQ(APFloat::opOK, |
| 1183 | APFloat(APFloat::IEEEdouble(), "10" ) |
| 1184 | .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| 1185 | EXPECT_TRUE(isExact); |
| 1186 | EXPECT_EQ(APSInt(APInt(5, 10), true), result); |
| 1187 | |
| 1188 | EXPECT_EQ(APFloat::opInvalidOp, |
| 1189 | APFloat(APFloat::IEEEdouble(), "-10" ) |
| 1190 | .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| 1191 | EXPECT_FALSE(isExact); |
| 1192 | EXPECT_EQ(APSInt::getMinValue(5, true), result); |
| 1193 | |
| 1194 | EXPECT_EQ(APFloat::opInvalidOp, |
| 1195 | APFloat(APFloat::IEEEdouble(), "32" ) |
| 1196 | .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| 1197 | EXPECT_FALSE(isExact); |
| 1198 | EXPECT_EQ(APSInt::getMaxValue(5, true), result); |
| 1199 | |
| 1200 | EXPECT_EQ(APFloat::opInexact, |
| 1201 | APFloat(APFloat::IEEEdouble(), "7.9" ) |
| 1202 | .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| 1203 | EXPECT_FALSE(isExact); |
| 1204 | EXPECT_EQ(APSInt(APInt(5, 7), true), result); |
| 1205 | |
| 1206 | result.setIsUnsigned(false); |
| 1207 | EXPECT_EQ(APFloat::opOK, |
| 1208 | APFloat(APFloat::IEEEdouble(), "-10" ) |
| 1209 | .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| 1210 | EXPECT_TRUE(isExact); |
| 1211 | EXPECT_EQ(APSInt(APInt(5, -10, true), false), result); |
| 1212 | |
| 1213 | EXPECT_EQ(APFloat::opInvalidOp, |
| 1214 | APFloat(APFloat::IEEEdouble(), "-17" ) |
| 1215 | .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| 1216 | EXPECT_FALSE(isExact); |
| 1217 | EXPECT_EQ(APSInt::getMinValue(5, false), result); |
| 1218 | |
| 1219 | EXPECT_EQ(APFloat::opInvalidOp, |
| 1220 | APFloat(APFloat::IEEEdouble(), "16" ) |
| 1221 | .convertToInteger(result, APFloat::rmTowardZero, &isExact)); |
| 1222 | EXPECT_FALSE(isExact); |
| 1223 | EXPECT_EQ(APSInt::getMaxValue(5, false), result); |
| 1224 | } |
| 1225 | |
| 1226 | static APInt nanbitsFromAPInt(const fltSemantics &Sem, bool SNaN, bool Negative, |
| 1227 | uint64_t payload) { |
| 1228 | APInt appayload(64, payload); |
| 1229 | if (SNaN) |
| 1230 | return APFloat::getSNaN(Sem, Negative, &appayload).bitcastToAPInt(); |
| 1231 | else |
| 1232 | return APFloat::getQNaN(Sem, Negative, &appayload).bitcastToAPInt(); |
| 1233 | } |
| 1234 | |
| 1235 | TEST(APFloatTest, makeNaN) { |
| 1236 | const struct { |
| 1237 | uint64_t expected; |
| 1238 | const fltSemantics &semantics; |
| 1239 | bool SNaN; |
| 1240 | bool Negative; |
| 1241 | uint64_t payload; |
| 1242 | } tests[] = { |
| 1243 | /* expected semantics SNaN Neg payload */ |
| 1244 | { 0x7fc00000ULL, APFloat::IEEEsingle(), false, false, 0x00000000ULL }, |
| 1245 | { 0xffc00000ULL, APFloat::IEEEsingle(), false, true, 0x00000000ULL }, |
| 1246 | { 0x7fc0ae72ULL, APFloat::IEEEsingle(), false, false, 0x0000ae72ULL }, |
| 1247 | { 0x7fffae72ULL, APFloat::IEEEsingle(), false, false, 0xffffae72ULL }, |
| 1248 | { 0x7fdaae72ULL, APFloat::IEEEsingle(), false, false, 0x00daae72ULL }, |
| 1249 | { 0x7fa00000ULL, APFloat::IEEEsingle(), true, false, 0x00000000ULL }, |
| 1250 | { 0xffa00000ULL, APFloat::IEEEsingle(), true, true, 0x00000000ULL }, |
| 1251 | { 0x7f80ae72ULL, APFloat::IEEEsingle(), true, false, 0x0000ae72ULL }, |
| 1252 | { 0x7fbfae72ULL, APFloat::IEEEsingle(), true, false, 0xffffae72ULL }, |
| 1253 | { 0x7f9aae72ULL, APFloat::IEEEsingle(), true, false, 0x001aae72ULL }, |
| 1254 | { 0x7ff8000000000000ULL, APFloat::IEEEdouble(), false, false, 0x0000000000000000ULL }, |
| 1255 | { 0xfff8000000000000ULL, APFloat::IEEEdouble(), false, true, 0x0000000000000000ULL }, |
| 1256 | { 0x7ff800000000ae72ULL, APFloat::IEEEdouble(), false, false, 0x000000000000ae72ULL }, |
| 1257 | { 0x7fffffffffffae72ULL, APFloat::IEEEdouble(), false, false, 0xffffffffffffae72ULL }, |
| 1258 | { 0x7ffdaaaaaaaaae72ULL, APFloat::IEEEdouble(), false, false, 0x000daaaaaaaaae72ULL }, |
| 1259 | { 0x7ff4000000000000ULL, APFloat::IEEEdouble(), true, false, 0x0000000000000000ULL }, |
| 1260 | { 0xfff4000000000000ULL, APFloat::IEEEdouble(), true, true, 0x0000000000000000ULL }, |
| 1261 | { 0x7ff000000000ae72ULL, APFloat::IEEEdouble(), true, false, 0x000000000000ae72ULL }, |
| 1262 | { 0x7ff7ffffffffae72ULL, APFloat::IEEEdouble(), true, false, 0xffffffffffffae72ULL }, |
| 1263 | { 0x7ff1aaaaaaaaae72ULL, APFloat::IEEEdouble(), true, false, 0x0001aaaaaaaaae72ULL }, |
| 1264 | }; |
| 1265 | |
| 1266 | for (const auto &t : tests) { |
| 1267 | ASSERT_EQ(t.expected, nanbitsFromAPInt(t.semantics, t.SNaN, t.Negative, t.payload)); |
| 1268 | } |
| 1269 | } |
| 1270 | |
| 1271 | #ifdef GTEST_HAS_DEATH_TEST |
| 1272 | #ifndef NDEBUG |
| 1273 | TEST(APFloatTest, SemanticsDeath) { |
| 1274 | EXPECT_DEATH(APFloat(APFloat::IEEEsingle(), 0).convertToDouble(), "Float semantics are not IEEEdouble" ); |
| 1275 | EXPECT_DEATH(APFloat(APFloat::IEEEdouble(), 0).convertToFloat(), "Float semantics are not IEEEsingle" ); |
| 1276 | } |
| 1277 | #endif |
| 1278 | #endif |
| 1279 | |
| 1280 | TEST(APFloatTest, StringDecimalError) { |
| 1281 | EXPECT_EQ("Invalid string length" , convertToErrorFromString("" )); |
| 1282 | EXPECT_EQ("String has no digits" , convertToErrorFromString("+" )); |
| 1283 | EXPECT_EQ("String has no digits" , convertToErrorFromString("-" )); |
| 1284 | |
| 1285 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("\0" , 1))); |
| 1286 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("1\0" , 2))); |
| 1287 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("1" "\0" "2" , 3))); |
| 1288 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("1" "\0" "2e1" , 5))); |
| 1289 | EXPECT_EQ("Invalid character in exponent" , convertToErrorFromString(StringRef("1e\0" , 3))); |
| 1290 | EXPECT_EQ("Invalid character in exponent" , convertToErrorFromString(StringRef("1e1\0" , 4))); |
| 1291 | EXPECT_EQ("Invalid character in exponent" , convertToErrorFromString(StringRef("1e1" "\0" "2" , 5))); |
| 1292 | |
| 1293 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString("1.0f" )); |
| 1294 | |
| 1295 | EXPECT_EQ("String contains multiple dots" , convertToErrorFromString(".." )); |
| 1296 | EXPECT_EQ("String contains multiple dots" , convertToErrorFromString("..0" )); |
| 1297 | EXPECT_EQ("String contains multiple dots" , convertToErrorFromString("1.0.0" )); |
| 1298 | } |
| 1299 | |
| 1300 | TEST(APFloatTest, StringDecimalSignificandError) { |
| 1301 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "." )); |
| 1302 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+." )); |
| 1303 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-." )); |
| 1304 | |
| 1305 | |
| 1306 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "e" )); |
| 1307 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+e" )); |
| 1308 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-e" )); |
| 1309 | |
| 1310 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "e1" )); |
| 1311 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+e1" )); |
| 1312 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-e1" )); |
| 1313 | |
| 1314 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( ".e1" )); |
| 1315 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+.e1" )); |
| 1316 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-.e1" )); |
| 1317 | |
| 1318 | |
| 1319 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( ".e" )); |
| 1320 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+.e" )); |
| 1321 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-.e" )); |
| 1322 | } |
| 1323 | |
| 1324 | TEST(APFloatTest, StringHexadecimalError) { |
| 1325 | EXPECT_EQ("Invalid string" , convertToErrorFromString( "0x" )); |
| 1326 | EXPECT_EQ("Invalid string" , convertToErrorFromString("+0x" )); |
| 1327 | EXPECT_EQ("Invalid string" , convertToErrorFromString("-0x" )); |
| 1328 | |
| 1329 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString( "0x0" )); |
| 1330 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("+0x0" )); |
| 1331 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("-0x0" )); |
| 1332 | |
| 1333 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString( "0x0." )); |
| 1334 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("+0x0." )); |
| 1335 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("-0x0." )); |
| 1336 | |
| 1337 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString( "0x.0" )); |
| 1338 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("+0x.0" )); |
| 1339 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("-0x.0" )); |
| 1340 | |
| 1341 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString( "0x0.0" )); |
| 1342 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("+0x0.0" )); |
| 1343 | EXPECT_EQ("Hex strings require an exponent" , convertToErrorFromString("-0x0.0" )); |
| 1344 | |
| 1345 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("0x\0" , 3))); |
| 1346 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("0x1\0" , 4))); |
| 1347 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("0x1" "\0" "2" , 5))); |
| 1348 | EXPECT_EQ("Invalid character in significand" , convertToErrorFromString(StringRef("0x1" "\0" "2p1" , 7))); |
| 1349 | EXPECT_EQ("Invalid character in exponent" , convertToErrorFromString(StringRef("0x1p\0" , 5))); |
| 1350 | EXPECT_EQ("Invalid character in exponent" , convertToErrorFromString(StringRef("0x1p1\0" , 6))); |
| 1351 | EXPECT_EQ("Invalid character in exponent" , convertToErrorFromString(StringRef("0x1p1" "\0" "2" , 7))); |
| 1352 | |
| 1353 | EXPECT_EQ("Invalid character in exponent" , convertToErrorFromString("0x1p0f" )); |
| 1354 | |
| 1355 | EXPECT_EQ("String contains multiple dots" , convertToErrorFromString("0x..p1" )); |
| 1356 | EXPECT_EQ("String contains multiple dots" , convertToErrorFromString("0x..0p1" )); |
| 1357 | EXPECT_EQ("String contains multiple dots" , convertToErrorFromString("0x1.0.0p1" )); |
| 1358 | } |
| 1359 | |
| 1360 | TEST(APFloatTest, StringHexadecimalSignificandError) { |
| 1361 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "0x." )); |
| 1362 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+0x." )); |
| 1363 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-0x." )); |
| 1364 | |
| 1365 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "0xp" )); |
| 1366 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+0xp" )); |
| 1367 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-0xp" )); |
| 1368 | |
| 1369 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "0xp+" )); |
| 1370 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+0xp+" )); |
| 1371 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-0xp+" )); |
| 1372 | |
| 1373 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "0xp-" )); |
| 1374 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+0xp-" )); |
| 1375 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-0xp-" )); |
| 1376 | |
| 1377 | |
| 1378 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "0x.p" )); |
| 1379 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+0x.p" )); |
| 1380 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-0x.p" )); |
| 1381 | |
| 1382 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "0x.p+" )); |
| 1383 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+0x.p+" )); |
| 1384 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-0x.p+" )); |
| 1385 | |
| 1386 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString( "0x.p-" )); |
| 1387 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("+0x.p-" )); |
| 1388 | EXPECT_EQ("Significand has no digits" , convertToErrorFromString("-0x.p-" )); |
| 1389 | } |
| 1390 | |
| 1391 | TEST(APFloatTest, StringHexadecimalExponentError) { |
| 1392 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1p" )); |
| 1393 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1p" )); |
| 1394 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1p" )); |
| 1395 | |
| 1396 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1p+" )); |
| 1397 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1p+" )); |
| 1398 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1p+" )); |
| 1399 | |
| 1400 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1p-" )); |
| 1401 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1p-" )); |
| 1402 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1p-" )); |
| 1403 | |
| 1404 | |
| 1405 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1.p" )); |
| 1406 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1.p" )); |
| 1407 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1.p" )); |
| 1408 | |
| 1409 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1.p+" )); |
| 1410 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1.p+" )); |
| 1411 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1.p+" )); |
| 1412 | |
| 1413 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1.p-" )); |
| 1414 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1.p-" )); |
| 1415 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1.p-" )); |
| 1416 | |
| 1417 | |
| 1418 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x.1p" )); |
| 1419 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x.1p" )); |
| 1420 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x.1p" )); |
| 1421 | |
| 1422 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x.1p+" )); |
| 1423 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x.1p+" )); |
| 1424 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x.1p+" )); |
| 1425 | |
| 1426 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x.1p-" )); |
| 1427 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x.1p-" )); |
| 1428 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x.1p-" )); |
| 1429 | |
| 1430 | |
| 1431 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1.1p" )); |
| 1432 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1.1p" )); |
| 1433 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1.1p" )); |
| 1434 | |
| 1435 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1.1p+" )); |
| 1436 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1.1p+" )); |
| 1437 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1.1p+" )); |
| 1438 | |
| 1439 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString( "0x1.1p-" )); |
| 1440 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("+0x1.1p-" )); |
| 1441 | EXPECT_EQ("Exponent has no digits" , convertToErrorFromString("-0x1.1p-" )); |
| 1442 | } |
| 1443 | |
| 1444 | TEST(APFloatTest, exactInverse) { |
| 1445 | APFloat inv(0.0f); |
| 1446 | |
| 1447 | // Trivial operation. |
| 1448 | EXPECT_TRUE(APFloat(2.0).getExactInverse(&inv)); |
| 1449 | EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(0.5))); |
| 1450 | EXPECT_TRUE(APFloat(2.0f).getExactInverse(&inv)); |
| 1451 | EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(0.5f))); |
| 1452 | EXPECT_TRUE(APFloat(APFloat::IEEEquad(), "2.0" ).getExactInverse(&inv)); |
| 1453 | EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::IEEEquad(), "0.5" ))); |
| 1454 | EXPECT_TRUE(APFloat(APFloat::PPCDoubleDouble(), "2.0" ).getExactInverse(&inv)); |
| 1455 | EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::PPCDoubleDouble(), "0.5" ))); |
| 1456 | EXPECT_TRUE(APFloat(APFloat::x87DoubleExtended(), "2.0" ).getExactInverse(&inv)); |
| 1457 | EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(APFloat::x87DoubleExtended(), "0.5" ))); |
| 1458 | |
| 1459 | // FLT_MIN |
| 1460 | EXPECT_TRUE(APFloat(1.17549435e-38f).getExactInverse(&inv)); |
| 1461 | EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(8.5070592e+37f))); |
| 1462 | |
| 1463 | // Large float, inverse is a denormal. |
| 1464 | EXPECT_FALSE(APFloat(1.7014118e38f).getExactInverse(nullptr)); |
| 1465 | // Zero |
| 1466 | EXPECT_FALSE(APFloat(0.0).getExactInverse(nullptr)); |
| 1467 | // Denormalized float |
| 1468 | EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(nullptr)); |
| 1469 | } |
| 1470 | |
| 1471 | TEST(APFloatTest, roundToIntegral) { |
| 1472 | APFloat T(-0.5), S(3.14), R(APFloat::getLargest(APFloat::IEEEdouble())), P(0.0); |
| 1473 | |
| 1474 | P = T; |
| 1475 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1476 | EXPECT_EQ(-0.0, P.convertToDouble()); |
| 1477 | P = T; |
| 1478 | P.roundToIntegral(APFloat::rmTowardNegative); |
| 1479 | EXPECT_EQ(-1.0, P.convertToDouble()); |
| 1480 | P = T; |
| 1481 | P.roundToIntegral(APFloat::rmTowardPositive); |
| 1482 | EXPECT_EQ(-0.0, P.convertToDouble()); |
| 1483 | P = T; |
| 1484 | P.roundToIntegral(APFloat::rmNearestTiesToEven); |
| 1485 | EXPECT_EQ(-0.0, P.convertToDouble()); |
| 1486 | |
| 1487 | P = S; |
| 1488 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1489 | EXPECT_EQ(3.0, P.convertToDouble()); |
| 1490 | P = S; |
| 1491 | P.roundToIntegral(APFloat::rmTowardNegative); |
| 1492 | EXPECT_EQ(3.0, P.convertToDouble()); |
| 1493 | P = S; |
| 1494 | P.roundToIntegral(APFloat::rmTowardPositive); |
| 1495 | EXPECT_EQ(4.0, P.convertToDouble()); |
| 1496 | P = S; |
| 1497 | P.roundToIntegral(APFloat::rmNearestTiesToEven); |
| 1498 | EXPECT_EQ(3.0, P.convertToDouble()); |
| 1499 | |
| 1500 | P = R; |
| 1501 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1502 | EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| 1503 | P = R; |
| 1504 | P.roundToIntegral(APFloat::rmTowardNegative); |
| 1505 | EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| 1506 | P = R; |
| 1507 | P.roundToIntegral(APFloat::rmTowardPositive); |
| 1508 | EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| 1509 | P = R; |
| 1510 | P.roundToIntegral(APFloat::rmNearestTiesToEven); |
| 1511 | EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); |
| 1512 | |
| 1513 | P = APFloat::getZero(APFloat::IEEEdouble()); |
| 1514 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1515 | EXPECT_EQ(0.0, P.convertToDouble()); |
| 1516 | P = APFloat::getZero(APFloat::IEEEdouble(), true); |
| 1517 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1518 | EXPECT_EQ(-0.0, P.convertToDouble()); |
| 1519 | P = APFloat::getNaN(APFloat::IEEEdouble()); |
| 1520 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1521 | EXPECT_TRUE(std::isnan(P.convertToDouble())); |
| 1522 | P = APFloat::getInf(APFloat::IEEEdouble()); |
| 1523 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1524 | EXPECT_TRUE(std::isinf(P.convertToDouble()) && P.convertToDouble() > 0.0); |
| 1525 | P = APFloat::getInf(APFloat::IEEEdouble(), true); |
| 1526 | P.roundToIntegral(APFloat::rmTowardZero); |
| 1527 | EXPECT_TRUE(std::isinf(P.convertToDouble()) && P.convertToDouble() < 0.0); |
| 1528 | |
| 1529 | APFloat::opStatus St; |
| 1530 | |
| 1531 | P = APFloat::getNaN(APFloat::IEEEdouble()); |
| 1532 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1533 | EXPECT_TRUE(P.isNaN()); |
| 1534 | EXPECT_FALSE(P.isNegative()); |
| 1535 | EXPECT_EQ(APFloat::opOK, St); |
| 1536 | |
| 1537 | P = APFloat::getNaN(APFloat::IEEEdouble(), true); |
| 1538 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1539 | EXPECT_TRUE(P.isNaN()); |
| 1540 | EXPECT_TRUE(P.isNegative()); |
| 1541 | EXPECT_EQ(APFloat::opOK, St); |
| 1542 | |
| 1543 | P = APFloat::getSNaN(APFloat::IEEEdouble()); |
| 1544 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1545 | EXPECT_TRUE(P.isNaN()); |
| 1546 | EXPECT_FALSE(P.isSignaling()); |
| 1547 | EXPECT_FALSE(P.isNegative()); |
| 1548 | EXPECT_EQ(APFloat::opInvalidOp, St); |
| 1549 | |
| 1550 | P = APFloat::getSNaN(APFloat::IEEEdouble(), true); |
| 1551 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1552 | EXPECT_TRUE(P.isNaN()); |
| 1553 | EXPECT_FALSE(P.isSignaling()); |
| 1554 | EXPECT_TRUE(P.isNegative()); |
| 1555 | EXPECT_EQ(APFloat::opInvalidOp, St); |
| 1556 | |
| 1557 | P = APFloat::getInf(APFloat::IEEEdouble()); |
| 1558 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1559 | EXPECT_TRUE(P.isInfinity()); |
| 1560 | EXPECT_FALSE(P.isNegative()); |
| 1561 | EXPECT_EQ(APFloat::opOK, St); |
| 1562 | |
| 1563 | P = APFloat::getInf(APFloat::IEEEdouble(), true); |
| 1564 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1565 | EXPECT_TRUE(P.isInfinity()); |
| 1566 | EXPECT_TRUE(P.isNegative()); |
| 1567 | EXPECT_EQ(APFloat::opOK, St); |
| 1568 | |
| 1569 | P = APFloat::getZero(APFloat::IEEEdouble(), false); |
| 1570 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1571 | EXPECT_TRUE(P.isZero()); |
| 1572 | EXPECT_FALSE(P.isNegative()); |
| 1573 | EXPECT_EQ(APFloat::opOK, St); |
| 1574 | |
| 1575 | P = APFloat::getZero(APFloat::IEEEdouble(), false); |
| 1576 | St = P.roundToIntegral(APFloat::rmTowardNegative); |
| 1577 | EXPECT_TRUE(P.isZero()); |
| 1578 | EXPECT_FALSE(P.isNegative()); |
| 1579 | EXPECT_EQ(APFloat::opOK, St); |
| 1580 | |
| 1581 | P = APFloat::getZero(APFloat::IEEEdouble(), true); |
| 1582 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1583 | EXPECT_TRUE(P.isZero()); |
| 1584 | EXPECT_TRUE(P.isNegative()); |
| 1585 | EXPECT_EQ(APFloat::opOK, St); |
| 1586 | |
| 1587 | P = APFloat::getZero(APFloat::IEEEdouble(), true); |
| 1588 | St = P.roundToIntegral(APFloat::rmTowardNegative); |
| 1589 | EXPECT_TRUE(P.isZero()); |
| 1590 | EXPECT_TRUE(P.isNegative()); |
| 1591 | EXPECT_EQ(APFloat::opOK, St); |
| 1592 | |
| 1593 | P = APFloat(1E-100); |
| 1594 | St = P.roundToIntegral(APFloat::rmTowardNegative); |
| 1595 | EXPECT_TRUE(P.isZero()); |
| 1596 | EXPECT_FALSE(P.isNegative()); |
| 1597 | EXPECT_EQ(APFloat::opInexact, St); |
| 1598 | |
| 1599 | P = APFloat(1E-100); |
| 1600 | St = P.roundToIntegral(APFloat::rmTowardPositive); |
| 1601 | EXPECT_EQ(1.0, P.convertToDouble()); |
| 1602 | EXPECT_FALSE(P.isNegative()); |
| 1603 | EXPECT_EQ(APFloat::opInexact, St); |
| 1604 | |
| 1605 | P = APFloat(-1E-100); |
| 1606 | St = P.roundToIntegral(APFloat::rmTowardNegative); |
| 1607 | EXPECT_TRUE(P.isNegative()); |
| 1608 | EXPECT_EQ(-1.0, P.convertToDouble()); |
| 1609 | EXPECT_EQ(APFloat::opInexact, St); |
| 1610 | |
| 1611 | P = APFloat(-1E-100); |
| 1612 | St = P.roundToIntegral(APFloat::rmTowardPositive); |
| 1613 | EXPECT_TRUE(P.isZero()); |
| 1614 | EXPECT_TRUE(P.isNegative()); |
| 1615 | EXPECT_EQ(APFloat::opInexact, St); |
| 1616 | |
| 1617 | P = APFloat(10.0); |
| 1618 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1619 | EXPECT_EQ(10.0, P.convertToDouble()); |
| 1620 | EXPECT_EQ(APFloat::opOK, St); |
| 1621 | |
| 1622 | P = APFloat(10.5); |
| 1623 | St = P.roundToIntegral(APFloat::rmTowardZero); |
| 1624 | EXPECT_EQ(10.0, P.convertToDouble()); |
| 1625 | EXPECT_EQ(APFloat::opInexact, St); |
| 1626 | |
| 1627 | P = APFloat(10.5); |
| 1628 | St = P.roundToIntegral(APFloat::rmTowardPositive); |
| 1629 | EXPECT_EQ(11.0, P.convertToDouble()); |
| 1630 | EXPECT_EQ(APFloat::opInexact, St); |
| 1631 | |
| 1632 | P = APFloat(10.5); |
| 1633 | St = P.roundToIntegral(APFloat::rmTowardNegative); |
| 1634 | EXPECT_EQ(10.0, P.convertToDouble()); |
| 1635 | EXPECT_EQ(APFloat::opInexact, St); |
| 1636 | |
| 1637 | P = APFloat(10.5); |
| 1638 | St = P.roundToIntegral(APFloat::rmNearestTiesToAway); |
| 1639 | EXPECT_EQ(11.0, P.convertToDouble()); |
| 1640 | EXPECT_EQ(APFloat::opInexact, St); |
| 1641 | |
| 1642 | P = APFloat(10.5); |
| 1643 | St = P.roundToIntegral(APFloat::rmNearestTiesToEven); |
| 1644 | EXPECT_EQ(10.0, P.convertToDouble()); |
| 1645 | EXPECT_EQ(APFloat::opInexact, St); |
| 1646 | } |
| 1647 | |
| 1648 | TEST(APFloatTest, isInteger) { |
| 1649 | APFloat T(-0.0); |
| 1650 | EXPECT_TRUE(T.isInteger()); |
| 1651 | T = APFloat(3.14159); |
| 1652 | EXPECT_FALSE(T.isInteger()); |
| 1653 | T = APFloat::getNaN(APFloat::IEEEdouble()); |
| 1654 | EXPECT_FALSE(T.isInteger()); |
| 1655 | T = APFloat::getInf(APFloat::IEEEdouble()); |
| 1656 | EXPECT_FALSE(T.isInteger()); |
| 1657 | T = APFloat::getInf(APFloat::IEEEdouble(), true); |
| 1658 | EXPECT_FALSE(T.isInteger()); |
| 1659 | T = APFloat::getLargest(APFloat::IEEEdouble()); |
| 1660 | EXPECT_TRUE(T.isInteger()); |
| 1661 | } |
| 1662 | |
| 1663 | TEST(DoubleAPFloatTest, isInteger) { |
| 1664 | APFloat F1(-0.0); |
| 1665 | APFloat F2(-0.0); |
| 1666 | llvm::detail::DoubleAPFloat T(APFloat::PPCDoubleDouble(), std::move(F1), |
| 1667 | std::move(F2)); |
| 1668 | EXPECT_TRUE(T.isInteger()); |
| 1669 | APFloat F3(3.14159); |
| 1670 | APFloat F4(-0.0); |
| 1671 | llvm::detail::DoubleAPFloat T2(APFloat::PPCDoubleDouble(), std::move(F3), |
| 1672 | std::move(F4)); |
| 1673 | EXPECT_FALSE(T2.isInteger()); |
| 1674 | APFloat F5(-0.0); |
| 1675 | APFloat F6(3.14159); |
| 1676 | llvm::detail::DoubleAPFloat T3(APFloat::PPCDoubleDouble(), std::move(F5), |
| 1677 | std::move(F6)); |
| 1678 | EXPECT_FALSE(T3.isInteger()); |
| 1679 | } |
| 1680 | |
| 1681 | TEST(APFloatTest, getLargest) { |
| 1682 | EXPECT_EQ(3.402823466e+38f, APFloat::getLargest(APFloat::IEEEsingle()).convertToFloat()); |
| 1683 | EXPECT_EQ(1.7976931348623158e+308, APFloat::getLargest(APFloat::IEEEdouble()).convertToDouble()); |
| 1684 | } |
| 1685 | |
| 1686 | TEST(APFloatTest, getSmallest) { |
| 1687 | APFloat test = APFloat::getSmallest(APFloat::IEEEsingle(), false); |
| 1688 | APFloat expected = APFloat(APFloat::IEEEsingle(), "0x0.000002p-126" ); |
| 1689 | EXPECT_FALSE(test.isNegative()); |
| 1690 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1691 | EXPECT_TRUE(test.isDenormal()); |
| 1692 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1693 | |
| 1694 | test = APFloat::getSmallest(APFloat::IEEEsingle(), true); |
| 1695 | expected = APFloat(APFloat::IEEEsingle(), "-0x0.000002p-126" ); |
| 1696 | EXPECT_TRUE(test.isNegative()); |
| 1697 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1698 | EXPECT_TRUE(test.isDenormal()); |
| 1699 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1700 | |
| 1701 | test = APFloat::getSmallest(APFloat::IEEEquad(), false); |
| 1702 | expected = APFloat(APFloat::IEEEquad(), "0x0.0000000000000000000000000001p-16382" ); |
| 1703 | EXPECT_FALSE(test.isNegative()); |
| 1704 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1705 | EXPECT_TRUE(test.isDenormal()); |
| 1706 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1707 | |
| 1708 | test = APFloat::getSmallest(APFloat::IEEEquad(), true); |
| 1709 | expected = APFloat(APFloat::IEEEquad(), "-0x0.0000000000000000000000000001p-16382" ); |
| 1710 | EXPECT_TRUE(test.isNegative()); |
| 1711 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1712 | EXPECT_TRUE(test.isDenormal()); |
| 1713 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1714 | } |
| 1715 | |
| 1716 | TEST(APFloatTest, getSmallestNormalized) { |
| 1717 | APFloat test = APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false); |
| 1718 | APFloat expected = APFloat(APFloat::IEEEsingle(), "0x1p-126" ); |
| 1719 | EXPECT_FALSE(test.isNegative()); |
| 1720 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1721 | EXPECT_FALSE(test.isDenormal()); |
| 1722 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1723 | |
| 1724 | test = APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true); |
| 1725 | expected = APFloat(APFloat::IEEEsingle(), "-0x1p-126" ); |
| 1726 | EXPECT_TRUE(test.isNegative()); |
| 1727 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1728 | EXPECT_FALSE(test.isDenormal()); |
| 1729 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1730 | |
| 1731 | test = APFloat::getSmallestNormalized(APFloat::IEEEquad(), false); |
| 1732 | expected = APFloat(APFloat::IEEEquad(), "0x1p-16382" ); |
| 1733 | EXPECT_FALSE(test.isNegative()); |
| 1734 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1735 | EXPECT_FALSE(test.isDenormal()); |
| 1736 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1737 | |
| 1738 | test = APFloat::getSmallestNormalized(APFloat::IEEEquad(), true); |
| 1739 | expected = APFloat(APFloat::IEEEquad(), "-0x1p-16382" ); |
| 1740 | EXPECT_TRUE(test.isNegative()); |
| 1741 | EXPECT_TRUE(test.isFiniteNonZero()); |
| 1742 | EXPECT_FALSE(test.isDenormal()); |
| 1743 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1744 | } |
| 1745 | |
| 1746 | TEST(APFloatTest, getZero) { |
| 1747 | struct { |
| 1748 | const fltSemantics *semantics; |
| 1749 | const bool sign; |
| 1750 | const unsigned long long bitPattern[2]; |
| 1751 | const unsigned bitPatternLength; |
| 1752 | } const GetZeroTest[] = { |
| 1753 | { &APFloat::IEEEhalf(), false, {0, 0}, 1}, |
| 1754 | { &APFloat::IEEEhalf(), true, {0x8000ULL, 0}, 1}, |
| 1755 | { &APFloat::IEEEsingle(), false, {0, 0}, 1}, |
| 1756 | { &APFloat::IEEEsingle(), true, {0x80000000ULL, 0}, 1}, |
| 1757 | { &APFloat::IEEEdouble(), false, {0, 0}, 1}, |
| 1758 | { &APFloat::IEEEdouble(), true, {0x8000000000000000ULL, 0}, 1}, |
| 1759 | { &APFloat::IEEEquad(), false, {0, 0}, 2}, |
| 1760 | { &APFloat::IEEEquad(), true, {0, 0x8000000000000000ULL}, 2}, |
| 1761 | { &APFloat::PPCDoubleDouble(), false, {0, 0}, 2}, |
| 1762 | { &APFloat::PPCDoubleDouble(), true, {0x8000000000000000ULL, 0}, 2}, |
| 1763 | { &APFloat::x87DoubleExtended(), false, {0, 0}, 2}, |
| 1764 | { &APFloat::x87DoubleExtended(), true, {0, 0x8000ULL}, 2}, |
| 1765 | }; |
| 1766 | const unsigned NumGetZeroTests = 12; |
| 1767 | for (unsigned i = 0; i < NumGetZeroTests; ++i) { |
| 1768 | APFloat test = APFloat::getZero(*GetZeroTest[i].semantics, |
| 1769 | GetZeroTest[i].sign); |
| 1770 | const char *pattern = GetZeroTest[i].sign? "-0x0p+0" : "0x0p+0" ; |
| 1771 | APFloat expected = APFloat(*GetZeroTest[i].semantics, |
| 1772 | pattern); |
| 1773 | EXPECT_TRUE(test.isZero()); |
| 1774 | EXPECT_TRUE(GetZeroTest[i].sign? test.isNegative() : !test.isNegative()); |
| 1775 | EXPECT_TRUE(test.bitwiseIsEqual(expected)); |
| 1776 | for (unsigned j = 0, je = GetZeroTest[i].bitPatternLength; j < je; ++j) { |
| 1777 | EXPECT_EQ(GetZeroTest[i].bitPattern[j], |
| 1778 | test.bitcastToAPInt().getRawData()[j]); |
| 1779 | } |
| 1780 | } |
| 1781 | } |
| 1782 | |
| 1783 | TEST(APFloatTest, copySign) { |
| 1784 | EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual( |
| 1785 | APFloat::copySign(APFloat(42.0), APFloat(-1.0)))); |
| 1786 | EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual( |
| 1787 | APFloat::copySign(APFloat(-42.0), APFloat(1.0)))); |
| 1788 | EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual( |
| 1789 | APFloat::copySign(APFloat(-42.0), APFloat(-1.0)))); |
| 1790 | EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual( |
| 1791 | APFloat::copySign(APFloat(42.0), APFloat(1.0)))); |
| 1792 | } |
| 1793 | |
| 1794 | TEST(APFloatTest, convert) { |
| 1795 | bool losesInfo; |
| 1796 | APFloat test(APFloat::IEEEdouble(), "1.0" ); |
| 1797 | test.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 1798 | EXPECT_EQ(1.0f, test.convertToFloat()); |
| 1799 | EXPECT_FALSE(losesInfo); |
| 1800 | |
| 1801 | test = APFloat(APFloat::x87DoubleExtended(), "0x1p-53" ); |
| 1802 | test.add(APFloat(APFloat::x87DoubleExtended(), "1.0" ), APFloat::rmNearestTiesToEven); |
| 1803 | test.convert(APFloat::IEEEdouble(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 1804 | EXPECT_EQ(1.0, test.convertToDouble()); |
| 1805 | EXPECT_TRUE(losesInfo); |
| 1806 | |
| 1807 | test = APFloat(APFloat::IEEEquad(), "0x1p-53" ); |
| 1808 | test.add(APFloat(APFloat::IEEEquad(), "1.0" ), APFloat::rmNearestTiesToEven); |
| 1809 | test.convert(APFloat::IEEEdouble(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 1810 | EXPECT_EQ(1.0, test.convertToDouble()); |
| 1811 | EXPECT_TRUE(losesInfo); |
| 1812 | |
| 1813 | test = APFloat(APFloat::x87DoubleExtended(), "0xf.fffffffp+28" ); |
| 1814 | test.convert(APFloat::IEEEdouble(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 1815 | EXPECT_EQ(4294967295.0, test.convertToDouble()); |
| 1816 | EXPECT_FALSE(losesInfo); |
| 1817 | |
| 1818 | test = APFloat::getSNaN(APFloat::IEEEsingle()); |
| 1819 | APFloat::opStatus status = test.convert(APFloat::x87DoubleExtended(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 1820 | // Conversion quiets the SNAN, so now 2 bits of the 64-bit significand should be set. |
| 1821 | APInt topTwoBits(64, 0x6000000000000000); |
| 1822 | EXPECT_TRUE(test.bitwiseIsEqual(APFloat::getQNaN(APFloat::x87DoubleExtended(), false, &topTwoBits))); |
| 1823 | EXPECT_FALSE(losesInfo); |
| 1824 | EXPECT_EQ(status, APFloat::opInvalidOp); |
| 1825 | |
| 1826 | test = APFloat::getQNaN(APFloat::IEEEsingle()); |
| 1827 | APFloat X87QNaN = APFloat::getQNaN(APFloat::x87DoubleExtended()); |
| 1828 | test.convert(APFloat::x87DoubleExtended(), APFloat::rmNearestTiesToEven, |
| 1829 | &losesInfo); |
| 1830 | EXPECT_TRUE(test.bitwiseIsEqual(X87QNaN)); |
| 1831 | EXPECT_FALSE(losesInfo); |
| 1832 | |
| 1833 | test = APFloat::getSNaN(APFloat::x87DoubleExtended()); |
| 1834 | test.convert(APFloat::x87DoubleExtended(), APFloat::rmNearestTiesToEven, |
| 1835 | &losesInfo); |
| 1836 | APFloat X87SNaN = APFloat::getSNaN(APFloat::x87DoubleExtended()); |
| 1837 | EXPECT_TRUE(test.bitwiseIsEqual(X87SNaN)); |
| 1838 | EXPECT_FALSE(losesInfo); |
| 1839 | |
| 1840 | test = APFloat::getQNaN(APFloat::x87DoubleExtended()); |
| 1841 | test.convert(APFloat::x87DoubleExtended(), APFloat::rmNearestTiesToEven, |
| 1842 | &losesInfo); |
| 1843 | EXPECT_TRUE(test.bitwiseIsEqual(X87QNaN)); |
| 1844 | EXPECT_FALSE(losesInfo); |
| 1845 | |
| 1846 | // The payload is lost in truncation, but we retain NaN by setting the quiet bit. |
| 1847 | APInt payload(52, 1); |
| 1848 | test = APFloat::getSNaN(APFloat::IEEEdouble(), false, &payload); |
| 1849 | status = test.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 1850 | EXPECT_EQ(0x7fc00000, test.bitcastToAPInt()); |
| 1851 | EXPECT_TRUE(losesInfo); |
| 1852 | EXPECT_EQ(status, APFloat::opInvalidOp); |
| 1853 | |
| 1854 | // The payload is lost in truncation. QNaN remains QNaN. |
| 1855 | test = APFloat::getQNaN(APFloat::IEEEdouble(), false, &payload); |
| 1856 | status = test.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven, &losesInfo); |
| 1857 | EXPECT_EQ(0x7fc00000, test.bitcastToAPInt()); |
| 1858 | EXPECT_TRUE(losesInfo); |
| 1859 | EXPECT_EQ(status, APFloat::opOK); |
| 1860 | } |
| 1861 | |
| 1862 | TEST(APFloatTest, PPCDoubleDouble) { |
| 1863 | APFloat test(APFloat::PPCDoubleDouble(), "1.0" ); |
| 1864 | EXPECT_EQ(0x3ff0000000000000ull, test.bitcastToAPInt().getRawData()[0]); |
| 1865 | EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]); |
| 1866 | |
| 1867 | // LDBL_MAX |
| 1868 | test = APFloat(APFloat::PPCDoubleDouble(), "1.79769313486231580793728971405301e+308" ); |
| 1869 | EXPECT_EQ(0x7fefffffffffffffull, test.bitcastToAPInt().getRawData()[0]); |
| 1870 | EXPECT_EQ(0x7c8ffffffffffffeull, test.bitcastToAPInt().getRawData()[1]); |
| 1871 | |
| 1872 | // LDBL_MIN |
| 1873 | test = APFloat(APFloat::PPCDoubleDouble(), "2.00416836000897277799610805135016e-292" ); |
| 1874 | EXPECT_EQ(0x0360000000000000ull, test.bitcastToAPInt().getRawData()[0]); |
| 1875 | EXPECT_EQ(0x0000000000000000ull, test.bitcastToAPInt().getRawData()[1]); |
| 1876 | |
| 1877 | // PR30869 |
| 1878 | { |
| 1879 | auto Result = APFloat(APFloat::PPCDoubleDouble(), "1.0" ) + |
| 1880 | APFloat(APFloat::PPCDoubleDouble(), "1.0" ); |
| 1881 | EXPECT_EQ(&APFloat::PPCDoubleDouble(), &Result.getSemantics()); |
| 1882 | |
| 1883 | Result = APFloat(APFloat::PPCDoubleDouble(), "1.0" ) - |
| 1884 | APFloat(APFloat::PPCDoubleDouble(), "1.0" ); |
| 1885 | EXPECT_EQ(&APFloat::PPCDoubleDouble(), &Result.getSemantics()); |
| 1886 | |
| 1887 | Result = APFloat(APFloat::PPCDoubleDouble(), "1.0" ) * |
| 1888 | APFloat(APFloat::PPCDoubleDouble(), "1.0" ); |
| 1889 | EXPECT_EQ(&APFloat::PPCDoubleDouble(), &Result.getSemantics()); |
| 1890 | |
| 1891 | Result = APFloat(APFloat::PPCDoubleDouble(), "1.0" ) / |
| 1892 | APFloat(APFloat::PPCDoubleDouble(), "1.0" ); |
| 1893 | EXPECT_EQ(&APFloat::PPCDoubleDouble(), &Result.getSemantics()); |
| 1894 | |
| 1895 | int Exp; |
| 1896 | Result = frexp(APFloat(APFloat::PPCDoubleDouble(), "1.0" ), Exp, |
| 1897 | APFloat::rmNearestTiesToEven); |
| 1898 | EXPECT_EQ(&APFloat::PPCDoubleDouble(), &Result.getSemantics()); |
| 1899 | |
| 1900 | Result = scalbn(APFloat(APFloat::PPCDoubleDouble(), "1.0" ), 1, |
| 1901 | APFloat::rmNearestTiesToEven); |
| 1902 | EXPECT_EQ(&APFloat::PPCDoubleDouble(), &Result.getSemantics()); |
| 1903 | } |
| 1904 | } |
| 1905 | |
| 1906 | TEST(APFloatTest, isNegative) { |
| 1907 | APFloat t(APFloat::IEEEsingle(), "0x1p+0" ); |
| 1908 | EXPECT_FALSE(t.isNegative()); |
| 1909 | t = APFloat(APFloat::IEEEsingle(), "-0x1p+0" ); |
| 1910 | EXPECT_TRUE(t.isNegative()); |
| 1911 | |
| 1912 | EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle(), false).isNegative()); |
| 1913 | EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle(), true).isNegative()); |
| 1914 | |
| 1915 | EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle(), false).isNegative()); |
| 1916 | EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle(), true).isNegative()); |
| 1917 | |
| 1918 | EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle(), false).isNegative()); |
| 1919 | EXPECT_TRUE(APFloat::getNaN(APFloat::IEEEsingle(), true).isNegative()); |
| 1920 | |
| 1921 | EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle(), false).isNegative()); |
| 1922 | EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle(), true).isNegative()); |
| 1923 | } |
| 1924 | |
| 1925 | TEST(APFloatTest, isNormal) { |
| 1926 | APFloat t(APFloat::IEEEsingle(), "0x1p+0" ); |
| 1927 | EXPECT_TRUE(t.isNormal()); |
| 1928 | |
| 1929 | EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle(), false).isNormal()); |
| 1930 | EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle(), false).isNormal()); |
| 1931 | EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle(), false).isNormal()); |
| 1932 | EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle(), false).isNormal()); |
| 1933 | EXPECT_FALSE(APFloat(APFloat::IEEEsingle(), "0x1p-149" ).isNormal()); |
| 1934 | } |
| 1935 | |
| 1936 | TEST(APFloatTest, isFinite) { |
| 1937 | APFloat t(APFloat::IEEEsingle(), "0x1p+0" ); |
| 1938 | EXPECT_TRUE(t.isFinite()); |
| 1939 | EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle(), false).isFinite()); |
| 1940 | EXPECT_TRUE(APFloat::getZero(APFloat::IEEEsingle(), false).isFinite()); |
| 1941 | EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle(), false).isFinite()); |
| 1942 | EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle(), false).isFinite()); |
| 1943 | EXPECT_TRUE(APFloat(APFloat::IEEEsingle(), "0x1p-149" ).isFinite()); |
| 1944 | } |
| 1945 | |
| 1946 | TEST(APFloatTest, isInfinity) { |
| 1947 | APFloat t(APFloat::IEEEsingle(), "0x1p+0" ); |
| 1948 | EXPECT_FALSE(t.isInfinity()); |
| 1949 | EXPECT_TRUE(APFloat::getInf(APFloat::IEEEsingle(), false).isInfinity()); |
| 1950 | EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle(), false).isInfinity()); |
| 1951 | EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle(), false).isInfinity()); |
| 1952 | EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle(), false).isInfinity()); |
| 1953 | EXPECT_FALSE(APFloat(APFloat::IEEEsingle(), "0x1p-149" ).isInfinity()); |
| 1954 | } |
| 1955 | |
| 1956 | TEST(APFloatTest, isNaN) { |
| 1957 | APFloat t(APFloat::IEEEsingle(), "0x1p+0" ); |
| 1958 | EXPECT_FALSE(t.isNaN()); |
| 1959 | EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle(), false).isNaN()); |
| 1960 | EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle(), false).isNaN()); |
| 1961 | EXPECT_TRUE(APFloat::getNaN(APFloat::IEEEsingle(), false).isNaN()); |
| 1962 | EXPECT_TRUE(APFloat::getSNaN(APFloat::IEEEsingle(), false).isNaN()); |
| 1963 | EXPECT_FALSE(APFloat(APFloat::IEEEsingle(), "0x1p-149" ).isNaN()); |
| 1964 | } |
| 1965 | |
| 1966 | TEST(APFloatTest, isFiniteNonZero) { |
| 1967 | // Test positive/negative normal value. |
| 1968 | EXPECT_TRUE(APFloat(APFloat::IEEEsingle(), "0x1p+0" ).isFiniteNonZero()); |
| 1969 | EXPECT_TRUE(APFloat(APFloat::IEEEsingle(), "-0x1p+0" ).isFiniteNonZero()); |
| 1970 | |
| 1971 | // Test positive/negative denormal value. |
| 1972 | EXPECT_TRUE(APFloat(APFloat::IEEEsingle(), "0x1p-149" ).isFiniteNonZero()); |
| 1973 | EXPECT_TRUE(APFloat(APFloat::IEEEsingle(), "-0x1p-149" ).isFiniteNonZero()); |
| 1974 | |
| 1975 | // Test +/- Infinity. |
| 1976 | EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle(), false).isFiniteNonZero()); |
| 1977 | EXPECT_FALSE(APFloat::getInf(APFloat::IEEEsingle(), true).isFiniteNonZero()); |
| 1978 | |
| 1979 | // Test +/- Zero. |
| 1980 | EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle(), false).isFiniteNonZero()); |
| 1981 | EXPECT_FALSE(APFloat::getZero(APFloat::IEEEsingle(), true).isFiniteNonZero()); |
| 1982 | |
| 1983 | // Test +/- qNaN. +/- dont mean anything with qNaN but paranoia can't hurt in |
| 1984 | // this instance. |
| 1985 | EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle(), false).isFiniteNonZero()); |
| 1986 | EXPECT_FALSE(APFloat::getNaN(APFloat::IEEEsingle(), true).isFiniteNonZero()); |
| 1987 | |
| 1988 | // Test +/- sNaN. +/- dont mean anything with sNaN but paranoia can't hurt in |
| 1989 | // this instance. |
| 1990 | EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle(), false).isFiniteNonZero()); |
| 1991 | EXPECT_FALSE(APFloat::getSNaN(APFloat::IEEEsingle(), true).isFiniteNonZero()); |
| 1992 | } |
| 1993 | |
| 1994 | TEST(APFloatTest, add) { |
| 1995 | // Test Special Cases against each other and normal values. |
| 1996 | |
| 1997 | APFloat PInf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 1998 | APFloat MInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 1999 | APFloat PZero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 2000 | APFloat MZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 2001 | APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 2002 | APFloat SNaN = APFloat(APFloat::IEEEsingle(), "snan123" ); |
| 2003 | APFloat PNormalValue = APFloat(APFloat::IEEEsingle(), "0x1p+0" ); |
| 2004 | APFloat MNormalValue = APFloat(APFloat::IEEEsingle(), "-0x1p+0" ); |
| 2005 | APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), false); |
| 2006 | APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), true); |
| 2007 | APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), false); |
| 2008 | APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), true); |
| 2009 | APFloat PSmallestNormalized = |
| 2010 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false); |
| 2011 | APFloat MSmallestNormalized = |
| 2012 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true); |
| 2013 | |
| 2014 | const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| 2015 | |
| 2016 | struct { |
| 2017 | APFloat x; |
| 2018 | APFloat y; |
| 2019 | const char *result; |
| 2020 | int status; |
| 2021 | int category; |
| 2022 | } SpecialCaseTests[] = { |
| 2023 | { PInf, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2024 | { PInf, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2025 | { PInf, PZero, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2026 | { PInf, MZero, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2027 | { PInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2028 | { PInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2029 | { PInf, PNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2030 | { PInf, MNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2031 | { PInf, PLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2032 | { PInf, MLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2033 | { PInf, PSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2034 | { PInf, MSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2035 | { PInf, PSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2036 | { PInf, MSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2037 | { MInf, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2038 | { MInf, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2039 | { MInf, PZero, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2040 | { MInf, MZero, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2041 | { MInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2042 | { MInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2043 | { MInf, PNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2044 | { MInf, MNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2045 | { MInf, PLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2046 | { MInf, MLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2047 | { MInf, PSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2048 | { MInf, MSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2049 | { MInf, PSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2050 | { MInf, MSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2051 | { PZero, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2052 | { PZero, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2053 | { PZero, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2054 | { PZero, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2055 | { PZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2056 | { PZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2057 | { PZero, PNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2058 | { PZero, MNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2059 | { PZero, PLargestValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2060 | { PZero, MLargestValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2061 | { PZero, PSmallestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2062 | { PZero, MSmallestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2063 | { PZero, PSmallestNormalized, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2064 | { PZero, MSmallestNormalized, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2065 | { MZero, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2066 | { MZero, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2067 | { MZero, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2068 | { MZero, MZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2069 | { MZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2070 | { MZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2071 | { MZero, PNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2072 | { MZero, MNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2073 | { MZero, PLargestValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2074 | { MZero, MLargestValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2075 | { MZero, PSmallestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2076 | { MZero, MSmallestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2077 | { MZero, PSmallestNormalized, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2078 | { MZero, MSmallestNormalized, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2079 | { QNaN, PInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2080 | { QNaN, MInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2081 | { QNaN, PZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2082 | { QNaN, MZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2083 | { QNaN, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2084 | { QNaN, SNaN, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2085 | { QNaN, PNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2086 | { QNaN, MNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2087 | { QNaN, PLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2088 | { QNaN, MLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2089 | { QNaN, PSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2090 | { QNaN, MSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2091 | { QNaN, PSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2092 | { QNaN, MSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2093 | { SNaN, PInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2094 | { SNaN, MInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2095 | { SNaN, PZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2096 | { SNaN, MZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2097 | { SNaN, QNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2098 | { SNaN, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2099 | { SNaN, PNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2100 | { SNaN, MNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2101 | { SNaN, PLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2102 | { SNaN, MLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2103 | { SNaN, PSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2104 | { SNaN, MSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2105 | { SNaN, PSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2106 | { SNaN, MSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2107 | { PNormalValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2108 | { PNormalValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2109 | { PNormalValue, PZero, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2110 | { PNormalValue, MZero, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2111 | { PNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2112 | { PNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2113 | { PNormalValue, PNormalValue, "0x1p+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2114 | { PNormalValue, MNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2115 | { PNormalValue, PLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2116 | { PNormalValue, MLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2117 | { PNormalValue, PSmallestValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2118 | { PNormalValue, MSmallestValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2119 | { PNormalValue, PSmallestNormalized, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2120 | { PNormalValue, MSmallestNormalized, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2121 | { MNormalValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2122 | { MNormalValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2123 | { MNormalValue, PZero, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2124 | { MNormalValue, MZero, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2125 | { MNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2126 | { MNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2127 | { MNormalValue, PNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2128 | { MNormalValue, MNormalValue, "-0x1p+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2129 | { MNormalValue, PLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2130 | { MNormalValue, MLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2131 | { MNormalValue, PSmallestValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2132 | { MNormalValue, MSmallestValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2133 | { MNormalValue, PSmallestNormalized, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2134 | { MNormalValue, MSmallestNormalized, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2135 | { PLargestValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2136 | { PLargestValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2137 | { PLargestValue, PZero, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2138 | { PLargestValue, MZero, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2139 | { PLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2140 | { PLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2141 | { PLargestValue, PNormalValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2142 | { PLargestValue, MNormalValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2143 | { PLargestValue, PLargestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2144 | { PLargestValue, MLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2145 | { PLargestValue, PSmallestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2146 | { PLargestValue, MSmallestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2147 | { PLargestValue, PSmallestNormalized, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2148 | { PLargestValue, MSmallestNormalized, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2149 | { MLargestValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2150 | { MLargestValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2151 | { MLargestValue, PZero, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2152 | { MLargestValue, MZero, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2153 | { MLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2154 | { MLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2155 | { MLargestValue, PNormalValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2156 | { MLargestValue, MNormalValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2157 | { MLargestValue, PLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2158 | { MLargestValue, MLargestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2159 | { MLargestValue, PSmallestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2160 | { MLargestValue, MSmallestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2161 | { MLargestValue, PSmallestNormalized, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2162 | { MLargestValue, MSmallestNormalized, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2163 | { PSmallestValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2164 | { PSmallestValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2165 | { PSmallestValue, PZero, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2166 | { PSmallestValue, MZero, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2167 | { PSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2168 | { PSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2169 | { PSmallestValue, PNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2170 | { PSmallestValue, MNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2171 | { PSmallestValue, PLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2172 | { PSmallestValue, MLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2173 | { PSmallestValue, PSmallestValue, "0x1p-148" , APFloat::opOK, APFloat::fcNormal }, |
| 2174 | { PSmallestValue, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2175 | { PSmallestValue, PSmallestNormalized, "0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2176 | { PSmallestValue, MSmallestNormalized, "-0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2177 | { MSmallestValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2178 | { MSmallestValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2179 | { MSmallestValue, PZero, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2180 | { MSmallestValue, MZero, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2181 | { MSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2182 | { MSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2183 | { MSmallestValue, PNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2184 | { MSmallestValue, MNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2185 | { MSmallestValue, PLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2186 | { MSmallestValue, MLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2187 | { MSmallestValue, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2188 | { MSmallestValue, MSmallestValue, "-0x1p-148" , APFloat::opOK, APFloat::fcNormal }, |
| 2189 | { MSmallestValue, PSmallestNormalized, "0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2190 | { MSmallestValue, MSmallestNormalized, "-0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2191 | { PSmallestNormalized, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2192 | { PSmallestNormalized, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2193 | { PSmallestNormalized, PZero, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2194 | { PSmallestNormalized, MZero, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2195 | { PSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2196 | { PSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2197 | { PSmallestNormalized, PNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2198 | { PSmallestNormalized, MNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2199 | { PSmallestNormalized, PLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2200 | { PSmallestNormalized, MLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2201 | { PSmallestNormalized, PSmallestValue, "0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2202 | { PSmallestNormalized, MSmallestValue, "0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2203 | { PSmallestNormalized, PSmallestNormalized, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 2204 | { PSmallestNormalized, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2205 | { MSmallestNormalized, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2206 | { MSmallestNormalized, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2207 | { MSmallestNormalized, PZero, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2208 | { MSmallestNormalized, MZero, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2209 | { MSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2210 | { MSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2211 | { MSmallestNormalized, PNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2212 | { MSmallestNormalized, MNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2213 | { MSmallestNormalized, PLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2214 | { MSmallestNormalized, MLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2215 | { MSmallestNormalized, PSmallestValue, "-0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2216 | { MSmallestNormalized, MSmallestValue, "-0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2217 | { MSmallestNormalized, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2218 | { MSmallestNormalized, MSmallestNormalized, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal } |
| 2219 | }; |
| 2220 | |
| 2221 | for (size_t i = 0; i < array_lengthof(SpecialCaseTests); ++i) { |
| 2222 | APFloat x(SpecialCaseTests[i].x); |
| 2223 | APFloat y(SpecialCaseTests[i].y); |
| 2224 | APFloat::opStatus status = x.add(y, APFloat::rmNearestTiesToEven); |
| 2225 | |
| 2226 | APFloat result(APFloat::IEEEsingle(), SpecialCaseTests[i].result); |
| 2227 | |
| 2228 | EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| 2229 | EXPECT_EQ(SpecialCaseTests[i].status, (int)status); |
| 2230 | EXPECT_EQ(SpecialCaseTests[i].category, (int)x.getCategory()); |
| 2231 | } |
| 2232 | } |
| 2233 | |
| 2234 | TEST(APFloatTest, subtract) { |
| 2235 | // Test Special Cases against each other and normal values. |
| 2236 | |
| 2237 | APFloat PInf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 2238 | APFloat MInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 2239 | APFloat PZero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 2240 | APFloat MZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 2241 | APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 2242 | APFloat SNaN = APFloat(APFloat::IEEEsingle(), "snan123" ); |
| 2243 | APFloat PNormalValue = APFloat(APFloat::IEEEsingle(), "0x1p+0" ); |
| 2244 | APFloat MNormalValue = APFloat(APFloat::IEEEsingle(), "-0x1p+0" ); |
| 2245 | APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), false); |
| 2246 | APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), true); |
| 2247 | APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), false); |
| 2248 | APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), true); |
| 2249 | APFloat PSmallestNormalized = |
| 2250 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false); |
| 2251 | APFloat MSmallestNormalized = |
| 2252 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true); |
| 2253 | |
| 2254 | const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| 2255 | |
| 2256 | struct { |
| 2257 | APFloat x; |
| 2258 | APFloat y; |
| 2259 | const char *result; |
| 2260 | int status; |
| 2261 | int category; |
| 2262 | } SpecialCaseTests[] = { |
| 2263 | { PInf, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2264 | { PInf, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2265 | { PInf, PZero, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2266 | { PInf, MZero, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2267 | { PInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2268 | { PInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2269 | { PInf, PNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2270 | { PInf, MNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2271 | { PInf, PLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2272 | { PInf, MLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2273 | { PInf, PSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2274 | { PInf, MSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2275 | { PInf, PSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2276 | { PInf, MSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2277 | { MInf, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2278 | { MInf, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2279 | { MInf, PZero, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2280 | { MInf, MZero, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2281 | { MInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2282 | { MInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2283 | { MInf, PNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2284 | { MInf, MNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2285 | { MInf, PLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2286 | { MInf, MLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2287 | { MInf, PSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2288 | { MInf, MSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2289 | { MInf, PSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2290 | { MInf, MSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2291 | { PZero, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2292 | { PZero, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2293 | { PZero, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2294 | { PZero, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2295 | { PZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2296 | { PZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2297 | { PZero, PNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2298 | { PZero, MNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2299 | { PZero, PLargestValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2300 | { PZero, MLargestValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2301 | { PZero, PSmallestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2302 | { PZero, MSmallestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2303 | { PZero, PSmallestNormalized, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2304 | { PZero, MSmallestNormalized, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2305 | { MZero, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2306 | { MZero, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2307 | { MZero, PZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2308 | { MZero, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2309 | { MZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2310 | { MZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2311 | { MZero, PNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2312 | { MZero, MNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2313 | { MZero, PLargestValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2314 | { MZero, MLargestValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2315 | { MZero, PSmallestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2316 | { MZero, MSmallestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2317 | { MZero, PSmallestNormalized, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2318 | { MZero, MSmallestNormalized, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2319 | { QNaN, PInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2320 | { QNaN, MInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2321 | { QNaN, PZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2322 | { QNaN, MZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2323 | { QNaN, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2324 | { QNaN, SNaN, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2325 | { QNaN, PNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2326 | { QNaN, MNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2327 | { QNaN, PLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2328 | { QNaN, MLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2329 | { QNaN, PSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2330 | { QNaN, MSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2331 | { QNaN, PSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2332 | { QNaN, MSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2333 | { SNaN, PInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2334 | { SNaN, MInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2335 | { SNaN, PZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2336 | { SNaN, MZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2337 | { SNaN, QNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2338 | { SNaN, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2339 | { SNaN, PNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2340 | { SNaN, MNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2341 | { SNaN, PLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2342 | { SNaN, MLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2343 | { SNaN, PSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2344 | { SNaN, MSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2345 | { SNaN, PSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2346 | { SNaN, MSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2347 | { PNormalValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2348 | { PNormalValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2349 | { PNormalValue, PZero, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2350 | { PNormalValue, MZero, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2351 | { PNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2352 | { PNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2353 | { PNormalValue, PNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2354 | { PNormalValue, MNormalValue, "0x1p+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2355 | { PNormalValue, PLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2356 | { PNormalValue, MLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2357 | { PNormalValue, PSmallestValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2358 | { PNormalValue, MSmallestValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2359 | { PNormalValue, PSmallestNormalized, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2360 | { PNormalValue, MSmallestNormalized, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2361 | { MNormalValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2362 | { MNormalValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2363 | { MNormalValue, PZero, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2364 | { MNormalValue, MZero, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2365 | { MNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2366 | { MNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2367 | { MNormalValue, PNormalValue, "-0x1p+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2368 | { MNormalValue, MNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2369 | { MNormalValue, PLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2370 | { MNormalValue, MLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2371 | { MNormalValue, PSmallestValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2372 | { MNormalValue, MSmallestValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2373 | { MNormalValue, PSmallestNormalized, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2374 | { MNormalValue, MSmallestNormalized, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2375 | { PLargestValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2376 | { PLargestValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2377 | { PLargestValue, PZero, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2378 | { PLargestValue, MZero, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2379 | { PLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2380 | { PLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2381 | { PLargestValue, PNormalValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2382 | { PLargestValue, MNormalValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2383 | { PLargestValue, PLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2384 | { PLargestValue, MLargestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2385 | { PLargestValue, PSmallestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2386 | { PLargestValue, MSmallestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2387 | { PLargestValue, PSmallestNormalized, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2388 | { PLargestValue, MSmallestNormalized, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2389 | { MLargestValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2390 | { MLargestValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2391 | { MLargestValue, PZero, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2392 | { MLargestValue, MZero, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2393 | { MLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2394 | { MLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2395 | { MLargestValue, PNormalValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2396 | { MLargestValue, MNormalValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2397 | { MLargestValue, PLargestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2398 | { MLargestValue, MLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2399 | { MLargestValue, PSmallestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2400 | { MLargestValue, MSmallestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2401 | { MLargestValue, PSmallestNormalized, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2402 | { MLargestValue, MSmallestNormalized, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2403 | { PSmallestValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2404 | { PSmallestValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2405 | { PSmallestValue, PZero, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2406 | { PSmallestValue, MZero, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2407 | { PSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2408 | { PSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2409 | { PSmallestValue, PNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2410 | { PSmallestValue, MNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2411 | { PSmallestValue, PLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2412 | { PSmallestValue, MLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2413 | { PSmallestValue, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2414 | { PSmallestValue, MSmallestValue, "0x1p-148" , APFloat::opOK, APFloat::fcNormal }, |
| 2415 | { PSmallestValue, PSmallestNormalized, "-0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2416 | { PSmallestValue, MSmallestNormalized, "0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2417 | { MSmallestValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2418 | { MSmallestValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2419 | { MSmallestValue, PZero, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2420 | { MSmallestValue, MZero, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2421 | { MSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2422 | { MSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2423 | { MSmallestValue, PNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2424 | { MSmallestValue, MNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2425 | { MSmallestValue, PLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2426 | { MSmallestValue, MLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2427 | { MSmallestValue, PSmallestValue, "-0x1p-148" , APFloat::opOK, APFloat::fcNormal }, |
| 2428 | { MSmallestValue, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2429 | { MSmallestValue, PSmallestNormalized, "-0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2430 | { MSmallestValue, MSmallestNormalized, "0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2431 | { PSmallestNormalized, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2432 | { PSmallestNormalized, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2433 | { PSmallestNormalized, PZero, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2434 | { PSmallestNormalized, MZero, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2435 | { PSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2436 | { PSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2437 | { PSmallestNormalized, PNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2438 | { PSmallestNormalized, MNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2439 | { PSmallestNormalized, PLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2440 | { PSmallestNormalized, MLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2441 | { PSmallestNormalized, PSmallestValue, "0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2442 | { PSmallestNormalized, MSmallestValue, "0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2443 | { PSmallestNormalized, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2444 | { PSmallestNormalized, MSmallestNormalized, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 2445 | { MSmallestNormalized, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2446 | { MSmallestNormalized, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2447 | { MSmallestNormalized, PZero, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2448 | { MSmallestNormalized, MZero, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2449 | { MSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2450 | { MSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2451 | { MSmallestNormalized, PNormalValue, "-0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2452 | { MSmallestNormalized, MNormalValue, "0x1p+0" , APFloat::opInexact, APFloat::fcNormal }, |
| 2453 | { MSmallestNormalized, PLargestValue, "-0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2454 | { MSmallestNormalized, MLargestValue, "0x1.fffffep+127" , APFloat::opInexact, APFloat::fcNormal }, |
| 2455 | { MSmallestNormalized, PSmallestValue, "-0x1.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2456 | { MSmallestNormalized, MSmallestValue, "-0x1.fffffcp-127" , APFloat::opOK, APFloat::fcNormal }, |
| 2457 | { MSmallestNormalized, PSmallestNormalized, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 2458 | { MSmallestNormalized, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero } |
| 2459 | }; |
| 2460 | |
| 2461 | for (size_t i = 0; i < array_lengthof(SpecialCaseTests); ++i) { |
| 2462 | APFloat x(SpecialCaseTests[i].x); |
| 2463 | APFloat y(SpecialCaseTests[i].y); |
| 2464 | APFloat::opStatus status = x.subtract(y, APFloat::rmNearestTiesToEven); |
| 2465 | |
| 2466 | APFloat result(APFloat::IEEEsingle(), SpecialCaseTests[i].result); |
| 2467 | |
| 2468 | EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| 2469 | EXPECT_EQ(SpecialCaseTests[i].status, (int)status); |
| 2470 | EXPECT_EQ(SpecialCaseTests[i].category, (int)x.getCategory()); |
| 2471 | } |
| 2472 | } |
| 2473 | |
| 2474 | TEST(APFloatTest, multiply) { |
| 2475 | // Test Special Cases against each other and normal values. |
| 2476 | |
| 2477 | APFloat PInf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 2478 | APFloat MInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 2479 | APFloat PZero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 2480 | APFloat MZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 2481 | APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 2482 | APFloat SNaN = APFloat(APFloat::IEEEsingle(), "snan123" ); |
| 2483 | APFloat PNormalValue = APFloat(APFloat::IEEEsingle(), "0x1p+0" ); |
| 2484 | APFloat MNormalValue = APFloat(APFloat::IEEEsingle(), "-0x1p+0" ); |
| 2485 | APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), false); |
| 2486 | APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), true); |
| 2487 | APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), false); |
| 2488 | APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), true); |
| 2489 | APFloat PSmallestNormalized = |
| 2490 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false); |
| 2491 | APFloat MSmallestNormalized = |
| 2492 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true); |
| 2493 | |
| 2494 | APFloat MaxQuad(APFloat::IEEEquad(), |
| 2495 | "0x1.ffffffffffffffffffffffffffffp+16383" ); |
| 2496 | APFloat MinQuad(APFloat::IEEEquad(), |
| 2497 | "0x0.0000000000000000000000000001p-16382" ); |
| 2498 | APFloat NMinQuad(APFloat::IEEEquad(), |
| 2499 | "-0x0.0000000000000000000000000001p-16382" ); |
| 2500 | |
| 2501 | const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| 2502 | const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact; |
| 2503 | |
| 2504 | struct { |
| 2505 | APFloat x; |
| 2506 | APFloat y; |
| 2507 | const char *result; |
| 2508 | int status; |
| 2509 | int category; |
| 2510 | APFloat::roundingMode roundingMode = APFloat::rmNearestTiesToEven; |
| 2511 | } SpecialCaseTests[] = { |
| 2512 | { PInf, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2513 | { PInf, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2514 | { PInf, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2515 | { PInf, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2516 | { PInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2517 | { PInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2518 | { PInf, PNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2519 | { PInf, MNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2520 | { PInf, PLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2521 | { PInf, MLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2522 | { PInf, PSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2523 | { PInf, MSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2524 | { PInf, PSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2525 | { PInf, MSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2526 | { MInf, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2527 | { MInf, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2528 | { MInf, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2529 | { MInf, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2530 | { MInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2531 | { MInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2532 | { MInf, PNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2533 | { MInf, MNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2534 | { MInf, PLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2535 | { MInf, MLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2536 | { MInf, PSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2537 | { MInf, MSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2538 | { MInf, PSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2539 | { MInf, MSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2540 | { PZero, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2541 | { PZero, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2542 | { PZero, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2543 | { PZero, MZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2544 | { PZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2545 | { PZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2546 | { PZero, PNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2547 | { PZero, MNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2548 | { PZero, PLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2549 | { PZero, MLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2550 | { PZero, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2551 | { PZero, MSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2552 | { PZero, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2553 | { PZero, MSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2554 | { MZero, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2555 | { MZero, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2556 | { MZero, PZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2557 | { MZero, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2558 | { MZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2559 | { MZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2560 | { MZero, PNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2561 | { MZero, MNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2562 | { MZero, PLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2563 | { MZero, MLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2564 | { MZero, PSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2565 | { MZero, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2566 | { MZero, PSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2567 | { MZero, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2568 | { QNaN, PInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2569 | { QNaN, MInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2570 | { QNaN, PZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2571 | { QNaN, MZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2572 | { QNaN, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2573 | { QNaN, SNaN, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2574 | { QNaN, PNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2575 | { QNaN, MNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2576 | { QNaN, PLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2577 | { QNaN, MLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2578 | { QNaN, PSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2579 | { QNaN, MSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2580 | { QNaN, PSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2581 | { QNaN, MSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2582 | { SNaN, PInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2583 | { SNaN, MInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2584 | { SNaN, PZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2585 | { SNaN, MZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2586 | { SNaN, QNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2587 | { SNaN, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2588 | { SNaN, PNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2589 | { SNaN, MNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2590 | { SNaN, PLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2591 | { SNaN, MLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2592 | { SNaN, PSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2593 | { SNaN, MSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2594 | { SNaN, PSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2595 | { SNaN, MSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2596 | { PNormalValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2597 | { PNormalValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2598 | { PNormalValue, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2599 | { PNormalValue, MZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2600 | { PNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2601 | { PNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2602 | { PNormalValue, PNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2603 | { PNormalValue, MNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2604 | { PNormalValue, PLargestValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2605 | { PNormalValue, MLargestValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2606 | { PNormalValue, PSmallestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2607 | { PNormalValue, MSmallestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2608 | { PNormalValue, PSmallestNormalized, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2609 | { PNormalValue, MSmallestNormalized, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2610 | { MNormalValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2611 | { MNormalValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2612 | { MNormalValue, PZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2613 | { MNormalValue, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2614 | { MNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2615 | { MNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2616 | { MNormalValue, PNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2617 | { MNormalValue, MNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2618 | { MNormalValue, PLargestValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2619 | { MNormalValue, MLargestValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2620 | { MNormalValue, PSmallestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2621 | { MNormalValue, MSmallestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2622 | { MNormalValue, PSmallestNormalized, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2623 | { MNormalValue, MSmallestNormalized, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2624 | { PLargestValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2625 | { PLargestValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2626 | { PLargestValue, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2627 | { PLargestValue, MZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2628 | { PLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2629 | { PLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2630 | { PLargestValue, PNormalValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2631 | { PLargestValue, MNormalValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2632 | { PLargestValue, PLargestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2633 | { PLargestValue, MLargestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2634 | { PLargestValue, PSmallestValue, "0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2635 | { PLargestValue, MSmallestValue, "-0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2636 | { PLargestValue, PSmallestNormalized, "0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2637 | { PLargestValue, MSmallestNormalized, "-0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2638 | { MLargestValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2639 | { MLargestValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2640 | { MLargestValue, PZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2641 | { MLargestValue, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2642 | { MLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2643 | { MLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2644 | { MLargestValue, PNormalValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2645 | { MLargestValue, MNormalValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2646 | { MLargestValue, PLargestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2647 | { MLargestValue, MLargestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2648 | { MLargestValue, PSmallestValue, "-0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2649 | { MLargestValue, MSmallestValue, "0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2650 | { MLargestValue, PSmallestNormalized, "-0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2651 | { MLargestValue, MSmallestNormalized, "0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2652 | { PSmallestValue, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2653 | { PSmallestValue, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2654 | { PSmallestValue, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2655 | { PSmallestValue, MZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2656 | { PSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2657 | { PSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2658 | { PSmallestValue, PNormalValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2659 | { PSmallestValue, MNormalValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2660 | { PSmallestValue, PLargestValue, "0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2661 | { PSmallestValue, MLargestValue, "-0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2662 | { PSmallestValue, PSmallestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2663 | { PSmallestValue, MSmallestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2664 | { PSmallestValue, PSmallestNormalized, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2665 | { PSmallestValue, MSmallestNormalized, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2666 | { MSmallestValue, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2667 | { MSmallestValue, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2668 | { MSmallestValue, PZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2669 | { MSmallestValue, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2670 | { MSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2671 | { MSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2672 | { MSmallestValue, PNormalValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2673 | { MSmallestValue, MNormalValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2674 | { MSmallestValue, PLargestValue, "-0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2675 | { MSmallestValue, MLargestValue, "0x1.fffffep-22" , APFloat::opOK, APFloat::fcNormal }, |
| 2676 | { MSmallestValue, PSmallestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2677 | { MSmallestValue, MSmallestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2678 | { MSmallestValue, PSmallestNormalized, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2679 | { MSmallestValue, MSmallestNormalized, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2680 | { PSmallestNormalized, PInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2681 | { PSmallestNormalized, MInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2682 | { PSmallestNormalized, PZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2683 | { PSmallestNormalized, MZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2684 | { PSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2685 | { PSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2686 | { PSmallestNormalized, PNormalValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2687 | { PSmallestNormalized, MNormalValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2688 | { PSmallestNormalized, PLargestValue, "0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2689 | { PSmallestNormalized, MLargestValue, "-0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2690 | { PSmallestNormalized, PSmallestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2691 | { PSmallestNormalized, MSmallestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2692 | { PSmallestNormalized, PSmallestNormalized, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2693 | { PSmallestNormalized, MSmallestNormalized, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2694 | { MSmallestNormalized, PInf, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2695 | { MSmallestNormalized, MInf, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2696 | { MSmallestNormalized, PZero, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2697 | { MSmallestNormalized, MZero, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2698 | { MSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2699 | { MSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2700 | { MSmallestNormalized, PNormalValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2701 | { MSmallestNormalized, MNormalValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2702 | { MSmallestNormalized, PLargestValue, "-0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2703 | { MSmallestNormalized, MLargestValue, "0x1.fffffep+1" , APFloat::opOK, APFloat::fcNormal }, |
| 2704 | { MSmallestNormalized, PSmallestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2705 | { MSmallestNormalized, MSmallestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2706 | { MSmallestNormalized, PSmallestNormalized, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2707 | { MSmallestNormalized, MSmallestNormalized, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2708 | |
| 2709 | {MaxQuad, MinQuad, "0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2710 | APFloat::fcNormal, APFloat::rmNearestTiesToEven}, |
| 2711 | {MaxQuad, MinQuad, "0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2712 | APFloat::fcNormal, APFloat::rmTowardPositive}, |
| 2713 | {MaxQuad, MinQuad, "0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2714 | APFloat::fcNormal, APFloat::rmTowardNegative}, |
| 2715 | {MaxQuad, MinQuad, "0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2716 | APFloat::fcNormal, APFloat::rmTowardZero}, |
| 2717 | {MaxQuad, MinQuad, "0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2718 | APFloat::fcNormal, APFloat::rmNearestTiesToAway}, |
| 2719 | |
| 2720 | {MaxQuad, NMinQuad, "-0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2721 | APFloat::fcNormal, APFloat::rmNearestTiesToEven}, |
| 2722 | {MaxQuad, NMinQuad, "-0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2723 | APFloat::fcNormal, APFloat::rmTowardPositive}, |
| 2724 | {MaxQuad, NMinQuad, "-0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2725 | APFloat::fcNormal, APFloat::rmTowardNegative}, |
| 2726 | {MaxQuad, NMinQuad, "-0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2727 | APFloat::fcNormal, APFloat::rmTowardZero}, |
| 2728 | {MaxQuad, NMinQuad, "-0x1.ffffffffffffffffffffffffffffp-111" , APFloat::opOK, |
| 2729 | APFloat::fcNormal, APFloat::rmNearestTiesToAway}, |
| 2730 | |
| 2731 | {MaxQuad, MaxQuad, "inf" , OverflowStatus, APFloat::fcInfinity, |
| 2732 | APFloat::rmNearestTiesToEven}, |
| 2733 | {MaxQuad, MaxQuad, "inf" , OverflowStatus, APFloat::fcInfinity, |
| 2734 | APFloat::rmTowardPositive}, |
| 2735 | {MaxQuad, MaxQuad, "0x1.ffffffffffffffffffffffffffffp+16383" , |
| 2736 | APFloat::opInexact, APFloat::fcNormal, APFloat::rmTowardNegative}, |
| 2737 | {MaxQuad, MaxQuad, "0x1.ffffffffffffffffffffffffffffp+16383" , |
| 2738 | APFloat::opInexact, APFloat::fcNormal, APFloat::rmTowardZero}, |
| 2739 | {MaxQuad, MaxQuad, "inf" , OverflowStatus, APFloat::fcInfinity, |
| 2740 | APFloat::rmNearestTiesToAway}, |
| 2741 | |
| 2742 | {MinQuad, MinQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 2743 | APFloat::rmNearestTiesToEven}, |
| 2744 | {MinQuad, MinQuad, "0x0.0000000000000000000000000001p-16382" , |
| 2745 | UnderflowStatus, APFloat::fcNormal, APFloat::rmTowardPositive}, |
| 2746 | {MinQuad, MinQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 2747 | APFloat::rmTowardNegative}, |
| 2748 | {MinQuad, MinQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 2749 | APFloat::rmTowardZero}, |
| 2750 | {MinQuad, MinQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 2751 | APFloat::rmNearestTiesToAway}, |
| 2752 | |
| 2753 | {MinQuad, NMinQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 2754 | APFloat::rmNearestTiesToEven}, |
| 2755 | {MinQuad, NMinQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 2756 | APFloat::rmTowardPositive}, |
| 2757 | {MinQuad, NMinQuad, "-0x0.0000000000000000000000000001p-16382" , |
| 2758 | UnderflowStatus, APFloat::fcNormal, APFloat::rmTowardNegative}, |
| 2759 | {MinQuad, NMinQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 2760 | APFloat::rmTowardZero}, |
| 2761 | {MinQuad, NMinQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 2762 | APFloat::rmNearestTiesToAway}, |
| 2763 | }; |
| 2764 | |
| 2765 | for (size_t i = 0; i < array_lengthof(SpecialCaseTests); ++i) { |
| 2766 | APFloat x(SpecialCaseTests[i].x); |
| 2767 | APFloat y(SpecialCaseTests[i].y); |
| 2768 | APFloat::opStatus status = x.multiply(y, SpecialCaseTests[i].roundingMode); |
| 2769 | |
| 2770 | APFloat result(x.getSemantics(), SpecialCaseTests[i].result); |
| 2771 | |
| 2772 | EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| 2773 | EXPECT_EQ(SpecialCaseTests[i].status, (int)status); |
| 2774 | EXPECT_EQ(SpecialCaseTests[i].category, (int)x.getCategory()); |
| 2775 | } |
| 2776 | } |
| 2777 | |
| 2778 | TEST(APFloatTest, divide) { |
| 2779 | // Test Special Cases against each other and normal values. |
| 2780 | |
| 2781 | APFloat PInf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 2782 | APFloat MInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 2783 | APFloat PZero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 2784 | APFloat MZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 2785 | APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 2786 | APFloat SNaN = APFloat(APFloat::IEEEsingle(), "snan123" ); |
| 2787 | APFloat PNormalValue = APFloat(APFloat::IEEEsingle(), "0x1p+0" ); |
| 2788 | APFloat MNormalValue = APFloat(APFloat::IEEEsingle(), "-0x1p+0" ); |
| 2789 | APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), false); |
| 2790 | APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), true); |
| 2791 | APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), false); |
| 2792 | APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), true); |
| 2793 | APFloat PSmallestNormalized = |
| 2794 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false); |
| 2795 | APFloat MSmallestNormalized = |
| 2796 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true); |
| 2797 | |
| 2798 | APFloat MaxQuad(APFloat::IEEEquad(), |
| 2799 | "0x1.ffffffffffffffffffffffffffffp+16383" ); |
| 2800 | APFloat MinQuad(APFloat::IEEEquad(), |
| 2801 | "0x0.0000000000000000000000000001p-16382" ); |
| 2802 | APFloat NMinQuad(APFloat::IEEEquad(), |
| 2803 | "-0x0.0000000000000000000000000001p-16382" ); |
| 2804 | |
| 2805 | const int OverflowStatus = APFloat::opOverflow | APFloat::opInexact; |
| 2806 | const int UnderflowStatus = APFloat::opUnderflow | APFloat::opInexact; |
| 2807 | |
| 2808 | struct { |
| 2809 | APFloat x; |
| 2810 | APFloat y; |
| 2811 | const char *result; |
| 2812 | int status; |
| 2813 | int category; |
| 2814 | APFloat::roundingMode roundingMode = APFloat::rmNearestTiesToEven; |
| 2815 | } SpecialCaseTests[] = { |
| 2816 | { PInf, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2817 | { PInf, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2818 | { PInf, PZero, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2819 | { PInf, MZero, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2820 | { PInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2821 | { PInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2822 | { PInf, PNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2823 | { PInf, MNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2824 | { PInf, PLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2825 | { PInf, MLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2826 | { PInf, PSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2827 | { PInf, MSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2828 | { PInf, PSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2829 | { PInf, MSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2830 | { MInf, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2831 | { MInf, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2832 | { MInf, PZero, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2833 | { MInf, MZero, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2834 | { MInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2835 | { MInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2836 | { MInf, PNormalValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2837 | { MInf, MNormalValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2838 | { MInf, PLargestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2839 | { MInf, MLargestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2840 | { MInf, PSmallestValue, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2841 | { MInf, MSmallestValue, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2842 | { MInf, PSmallestNormalized, "-inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2843 | { MInf, MSmallestNormalized, "inf" , APFloat::opOK, APFloat::fcInfinity }, |
| 2844 | { PZero, PInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2845 | { PZero, MInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2846 | { PZero, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2847 | { PZero, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2848 | { PZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2849 | { PZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2850 | { PZero, PNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2851 | { PZero, MNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2852 | { PZero, PLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2853 | { PZero, MLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2854 | { PZero, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2855 | { PZero, MSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2856 | { PZero, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2857 | { PZero, MSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2858 | { MZero, PInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2859 | { MZero, MInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2860 | { MZero, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2861 | { MZero, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2862 | { MZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2863 | { MZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2864 | { MZero, PNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2865 | { MZero, MNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2866 | { MZero, PLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2867 | { MZero, MLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2868 | { MZero, PSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2869 | { MZero, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2870 | { MZero, PSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2871 | { MZero, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2872 | { QNaN, PInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2873 | { QNaN, MInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2874 | { QNaN, PZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2875 | { QNaN, MZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2876 | { QNaN, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2877 | { QNaN, SNaN, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2878 | { QNaN, PNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2879 | { QNaN, MNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2880 | { QNaN, PLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2881 | { QNaN, MLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2882 | { QNaN, PSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2883 | { QNaN, MSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2884 | { QNaN, PSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2885 | { QNaN, MSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2886 | { SNaN, PInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2887 | { SNaN, MInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2888 | { SNaN, PZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2889 | { SNaN, MZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2890 | { SNaN, QNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2891 | { SNaN, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2892 | { SNaN, PNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2893 | { SNaN, MNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2894 | { SNaN, PLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2895 | { SNaN, MLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2896 | { SNaN, PSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2897 | { SNaN, MSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2898 | { SNaN, PSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2899 | { SNaN, MSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2900 | { PNormalValue, PInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2901 | { PNormalValue, MInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2902 | { PNormalValue, PZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2903 | { PNormalValue, MZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2904 | { PNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2905 | { PNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2906 | { PNormalValue, PNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2907 | { PNormalValue, MNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2908 | { PNormalValue, PLargestValue, "0x1p-128" , UnderflowStatus, APFloat::fcNormal }, |
| 2909 | { PNormalValue, MLargestValue, "-0x1p-128" , UnderflowStatus, APFloat::fcNormal }, |
| 2910 | { PNormalValue, PSmallestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2911 | { PNormalValue, MSmallestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2912 | { PNormalValue, PSmallestNormalized, "0x1p+126" , APFloat::opOK, APFloat::fcNormal }, |
| 2913 | { PNormalValue, MSmallestNormalized, "-0x1p+126" , APFloat::opOK, APFloat::fcNormal }, |
| 2914 | { MNormalValue, PInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2915 | { MNormalValue, MInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2916 | { MNormalValue, PZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2917 | { MNormalValue, MZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2918 | { MNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2919 | { MNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2920 | { MNormalValue, PNormalValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2921 | { MNormalValue, MNormalValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2922 | { MNormalValue, PLargestValue, "-0x1p-128" , UnderflowStatus, APFloat::fcNormal }, |
| 2923 | { MNormalValue, MLargestValue, "0x1p-128" , UnderflowStatus, APFloat::fcNormal }, |
| 2924 | { MNormalValue, PSmallestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2925 | { MNormalValue, MSmallestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2926 | { MNormalValue, PSmallestNormalized, "-0x1p+126" , APFloat::opOK, APFloat::fcNormal }, |
| 2927 | { MNormalValue, MSmallestNormalized, "0x1p+126" , APFloat::opOK, APFloat::fcNormal }, |
| 2928 | { PLargestValue, PInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2929 | { PLargestValue, MInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2930 | { PLargestValue, PZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2931 | { PLargestValue, MZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2932 | { PLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2933 | { PLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2934 | { PLargestValue, PNormalValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2935 | { PLargestValue, MNormalValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2936 | { PLargestValue, PLargestValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2937 | { PLargestValue, MLargestValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2938 | { PLargestValue, PSmallestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2939 | { PLargestValue, MSmallestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2940 | { PLargestValue, PSmallestNormalized, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2941 | { PLargestValue, MSmallestNormalized, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2942 | { MLargestValue, PInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2943 | { MLargestValue, MInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2944 | { MLargestValue, PZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2945 | { MLargestValue, MZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2946 | { MLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2947 | { MLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2948 | { MLargestValue, PNormalValue, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2949 | { MLargestValue, MNormalValue, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 2950 | { MLargestValue, PLargestValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2951 | { MLargestValue, MLargestValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2952 | { MLargestValue, PSmallestValue, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2953 | { MLargestValue, MSmallestValue, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2954 | { MLargestValue, PSmallestNormalized, "-inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2955 | { MLargestValue, MSmallestNormalized, "inf" , OverflowStatus, APFloat::fcInfinity }, |
| 2956 | { PSmallestValue, PInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2957 | { PSmallestValue, MInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2958 | { PSmallestValue, PZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2959 | { PSmallestValue, MZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2960 | { PSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2961 | { PSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2962 | { PSmallestValue, PNormalValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2963 | { PSmallestValue, MNormalValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2964 | { PSmallestValue, PLargestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2965 | { PSmallestValue, MLargestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2966 | { PSmallestValue, PSmallestValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2967 | { PSmallestValue, MSmallestValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2968 | { PSmallestValue, PSmallestNormalized, "0x1p-23" , APFloat::opOK, APFloat::fcNormal }, |
| 2969 | { PSmallestValue, MSmallestNormalized, "-0x1p-23" , APFloat::opOK, APFloat::fcNormal }, |
| 2970 | { MSmallestValue, PInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2971 | { MSmallestValue, MInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2972 | { MSmallestValue, PZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2973 | { MSmallestValue, MZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2974 | { MSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2975 | { MSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2976 | { MSmallestValue, PNormalValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2977 | { MSmallestValue, MNormalValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 2978 | { MSmallestValue, PLargestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2979 | { MSmallestValue, MLargestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2980 | { MSmallestValue, PSmallestValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2981 | { MSmallestValue, MSmallestValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2982 | { MSmallestValue, PSmallestNormalized, "-0x1p-23" , APFloat::opOK, APFloat::fcNormal }, |
| 2983 | { MSmallestValue, MSmallestNormalized, "0x1p-23" , APFloat::opOK, APFloat::fcNormal }, |
| 2984 | { PSmallestNormalized, PInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2985 | { PSmallestNormalized, MInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2986 | { PSmallestNormalized, PZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2987 | { PSmallestNormalized, MZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 2988 | { PSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 2989 | { PSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 2990 | { PSmallestNormalized, PNormalValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2991 | { PSmallestNormalized, MNormalValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 2992 | { PSmallestNormalized, PLargestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2993 | { PSmallestNormalized, MLargestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 2994 | { PSmallestNormalized, PSmallestValue, "0x1p+23" , APFloat::opOK, APFloat::fcNormal }, |
| 2995 | { PSmallestNormalized, MSmallestValue, "-0x1p+23" , APFloat::opOK, APFloat::fcNormal }, |
| 2996 | { PSmallestNormalized, PSmallestNormalized, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2997 | { PSmallestNormalized, MSmallestNormalized, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 2998 | { MSmallestNormalized, PInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 2999 | { MSmallestNormalized, MInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3000 | { MSmallestNormalized, PZero, "-inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 3001 | { MSmallestNormalized, MZero, "inf" , APFloat::opDivByZero, APFloat::fcInfinity }, |
| 3002 | { MSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3003 | { MSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3004 | { MSmallestNormalized, PNormalValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3005 | { MSmallestNormalized, MNormalValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3006 | { MSmallestNormalized, PLargestValue, "-0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 3007 | { MSmallestNormalized, MLargestValue, "0x0p+0" , UnderflowStatus, APFloat::fcZero }, |
| 3008 | { MSmallestNormalized, PSmallestValue, "-0x1p+23" , APFloat::opOK, APFloat::fcNormal }, |
| 3009 | { MSmallestNormalized, MSmallestValue, "0x1p+23" , APFloat::opOK, APFloat::fcNormal }, |
| 3010 | { MSmallestNormalized, PSmallestNormalized, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3011 | { MSmallestNormalized, MSmallestNormalized, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3012 | |
| 3013 | {MaxQuad, NMinQuad, "-inf" , OverflowStatus, APFloat::fcInfinity, |
| 3014 | APFloat::rmNearestTiesToEven}, |
| 3015 | {MaxQuad, NMinQuad, "-0x1.ffffffffffffffffffffffffffffp+16383" , |
| 3016 | APFloat::opInexact, APFloat::fcNormal, APFloat::rmTowardPositive}, |
| 3017 | {MaxQuad, NMinQuad, "-inf" , OverflowStatus, APFloat::fcInfinity, |
| 3018 | APFloat::rmTowardNegative}, |
| 3019 | {MaxQuad, NMinQuad, "-0x1.ffffffffffffffffffffffffffffp+16383" , |
| 3020 | APFloat::opInexact, APFloat::fcNormal, APFloat::rmTowardZero}, |
| 3021 | {MaxQuad, NMinQuad, "-inf" , OverflowStatus, APFloat::fcInfinity, |
| 3022 | APFloat::rmNearestTiesToAway}, |
| 3023 | |
| 3024 | {MinQuad, MaxQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 3025 | APFloat::rmNearestTiesToEven}, |
| 3026 | {MinQuad, MaxQuad, "0x0.0000000000000000000000000001p-16382" , |
| 3027 | UnderflowStatus, APFloat::fcNormal, APFloat::rmTowardPositive}, |
| 3028 | {MinQuad, MaxQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 3029 | APFloat::rmTowardNegative}, |
| 3030 | {MinQuad, MaxQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 3031 | APFloat::rmTowardZero}, |
| 3032 | {MinQuad, MaxQuad, "0" , UnderflowStatus, APFloat::fcZero, |
| 3033 | APFloat::rmNearestTiesToAway}, |
| 3034 | |
| 3035 | {NMinQuad, MaxQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 3036 | APFloat::rmNearestTiesToEven}, |
| 3037 | {NMinQuad, MaxQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 3038 | APFloat::rmTowardPositive}, |
| 3039 | {NMinQuad, MaxQuad, "-0x0.0000000000000000000000000001p-16382" , |
| 3040 | UnderflowStatus, APFloat::fcNormal, APFloat::rmTowardNegative}, |
| 3041 | {NMinQuad, MaxQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 3042 | APFloat::rmTowardZero}, |
| 3043 | {NMinQuad, MaxQuad, "-0" , UnderflowStatus, APFloat::fcZero, |
| 3044 | APFloat::rmNearestTiesToAway}, |
| 3045 | }; |
| 3046 | |
| 3047 | for (size_t i = 0; i < array_lengthof(SpecialCaseTests); ++i) { |
| 3048 | APFloat x(SpecialCaseTests[i].x); |
| 3049 | APFloat y(SpecialCaseTests[i].y); |
| 3050 | APFloat::opStatus status = x.divide(y, SpecialCaseTests[i].roundingMode); |
| 3051 | |
| 3052 | APFloat result(x.getSemantics(), SpecialCaseTests[i].result); |
| 3053 | |
| 3054 | EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| 3055 | EXPECT_EQ(SpecialCaseTests[i].status, (int)status); |
| 3056 | EXPECT_EQ(SpecialCaseTests[i].category, (int)x.getCategory()); |
| 3057 | } |
| 3058 | } |
| 3059 | |
| 3060 | TEST(APFloatTest, operatorOverloads) { |
| 3061 | // This is mostly testing that these operator overloads compile. |
| 3062 | APFloat One = APFloat(APFloat::IEEEsingle(), "0x1p+0" ); |
| 3063 | APFloat Two = APFloat(APFloat::IEEEsingle(), "0x2p+0" ); |
| 3064 | EXPECT_TRUE(Two.bitwiseIsEqual(One + One)); |
| 3065 | EXPECT_TRUE(One.bitwiseIsEqual(Two - One)); |
| 3066 | EXPECT_TRUE(Two.bitwiseIsEqual(One * Two)); |
| 3067 | EXPECT_TRUE(One.bitwiseIsEqual(Two / Two)); |
| 3068 | } |
| 3069 | |
| 3070 | TEST(APFloatTest, Comparisons) { |
| 3071 | enum {MNan, MInf, MBig, MOne, MZer, PZer, POne, PBig, PInf, PNan, NumVals}; |
| 3072 | APFloat Vals[NumVals] = { |
| 3073 | APFloat::getNaN(APFloat::IEEEsingle(), true), |
| 3074 | APFloat::getInf(APFloat::IEEEsingle(), true), |
| 3075 | APFloat::getLargest(APFloat::IEEEsingle(), true), |
| 3076 | APFloat(APFloat::IEEEsingle(), "-0x1p+0" ), |
| 3077 | APFloat::getZero(APFloat::IEEEsingle(), true), |
| 3078 | APFloat::getZero(APFloat::IEEEsingle(), false), |
| 3079 | APFloat(APFloat::IEEEsingle(), "0x1p+0" ), |
| 3080 | APFloat::getLargest(APFloat::IEEEsingle(), false), |
| 3081 | APFloat::getInf(APFloat::IEEEsingle(), false), |
| 3082 | APFloat::getNaN(APFloat::IEEEsingle(), false), |
| 3083 | }; |
| 3084 | using Relation = void (*)(const APFloat &, const APFloat &); |
| 3085 | Relation LT = [](const APFloat &LHS, const APFloat &RHS) { |
| 3086 | EXPECT_FALSE(LHS == RHS); |
| 3087 | EXPECT_TRUE(LHS != RHS); |
| 3088 | EXPECT_TRUE(LHS < RHS); |
| 3089 | EXPECT_FALSE(LHS > RHS); |
| 3090 | EXPECT_TRUE(LHS <= RHS); |
| 3091 | EXPECT_FALSE(LHS >= RHS); |
| 3092 | }; |
| 3093 | Relation EQ = [](const APFloat &LHS, const APFloat &RHS) { |
| 3094 | EXPECT_TRUE(LHS == RHS); |
| 3095 | EXPECT_FALSE(LHS != RHS); |
| 3096 | EXPECT_FALSE(LHS < RHS); |
| 3097 | EXPECT_FALSE(LHS > RHS); |
| 3098 | EXPECT_TRUE(LHS <= RHS); |
| 3099 | EXPECT_TRUE(LHS >= RHS); |
| 3100 | }; |
| 3101 | Relation GT = [](const APFloat &LHS, const APFloat &RHS) { |
| 3102 | EXPECT_FALSE(LHS == RHS); |
| 3103 | EXPECT_TRUE(LHS != RHS); |
| 3104 | EXPECT_FALSE(LHS < RHS); |
| 3105 | EXPECT_TRUE(LHS > RHS); |
| 3106 | EXPECT_FALSE(LHS <= RHS); |
| 3107 | EXPECT_TRUE(LHS >= RHS); |
| 3108 | }; |
| 3109 | Relation UN = [](const APFloat &LHS, const APFloat &RHS) { |
| 3110 | EXPECT_FALSE(LHS == RHS); |
| 3111 | EXPECT_TRUE(LHS != RHS); |
| 3112 | EXPECT_FALSE(LHS < RHS); |
| 3113 | EXPECT_FALSE(LHS > RHS); |
| 3114 | EXPECT_FALSE(LHS <= RHS); |
| 3115 | EXPECT_FALSE(LHS >= RHS); |
| 3116 | }; |
| 3117 | Relation Relations[NumVals][NumVals] = { |
| 3118 | // -N -I -B -1 -0 +0 +1 +B +I +N |
| 3119 | /* MNan */ {UN, UN, UN, UN, UN, UN, UN, UN, UN, UN}, |
| 3120 | /* MInf */ {UN, EQ, LT, LT, LT, LT, LT, LT, LT, UN}, |
| 3121 | /* MBig */ {UN, GT, EQ, LT, LT, LT, LT, LT, LT, UN}, |
| 3122 | /* MOne */ {UN, GT, GT, EQ, LT, LT, LT, LT, LT, UN}, |
| 3123 | /* MZer */ {UN, GT, GT, GT, EQ, EQ, LT, LT, LT, UN}, |
| 3124 | /* PZer */ {UN, GT, GT, GT, EQ, EQ, LT, LT, LT, UN}, |
| 3125 | /* POne */ {UN, GT, GT, GT, GT, GT, EQ, LT, LT, UN}, |
| 3126 | /* PBig */ {UN, GT, GT, GT, GT, GT, GT, EQ, LT, UN}, |
| 3127 | /* PInf */ {UN, GT, GT, GT, GT, GT, GT, GT, EQ, UN}, |
| 3128 | /* PNan */ {UN, UN, UN, UN, UN, UN, UN, UN, UN, UN}, |
| 3129 | }; |
| 3130 | for (unsigned I = 0; I < NumVals; ++I) |
| 3131 | for (unsigned J = 0; J < NumVals; ++J) |
| 3132 | Relations[I][J](Vals[I], Vals[J]); |
| 3133 | } |
| 3134 | |
| 3135 | TEST(APFloatTest, abs) { |
| 3136 | APFloat PInf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 3137 | APFloat MInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 3138 | APFloat PZero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 3139 | APFloat MZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 3140 | APFloat PQNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 3141 | APFloat MQNaN = APFloat::getNaN(APFloat::IEEEsingle(), true); |
| 3142 | APFloat PSNaN = APFloat::getSNaN(APFloat::IEEEsingle(), false); |
| 3143 | APFloat MSNaN = APFloat::getSNaN(APFloat::IEEEsingle(), true); |
| 3144 | APFloat PNormalValue = APFloat(APFloat::IEEEsingle(), "0x1p+0" ); |
| 3145 | APFloat MNormalValue = APFloat(APFloat::IEEEsingle(), "-0x1p+0" ); |
| 3146 | APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), false); |
| 3147 | APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), true); |
| 3148 | APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), false); |
| 3149 | APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), true); |
| 3150 | APFloat PSmallestNormalized = |
| 3151 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false); |
| 3152 | APFloat MSmallestNormalized = |
| 3153 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true); |
| 3154 | |
| 3155 | EXPECT_TRUE(PInf.bitwiseIsEqual(abs(PInf))); |
| 3156 | EXPECT_TRUE(PInf.bitwiseIsEqual(abs(MInf))); |
| 3157 | EXPECT_TRUE(PZero.bitwiseIsEqual(abs(PZero))); |
| 3158 | EXPECT_TRUE(PZero.bitwiseIsEqual(abs(MZero))); |
| 3159 | EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(PQNaN))); |
| 3160 | EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(MQNaN))); |
| 3161 | EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(PSNaN))); |
| 3162 | EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(MSNaN))); |
| 3163 | EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(PNormalValue))); |
| 3164 | EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(MNormalValue))); |
| 3165 | EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(PLargestValue))); |
| 3166 | EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(MLargestValue))); |
| 3167 | EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(PSmallestValue))); |
| 3168 | EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(MSmallestValue))); |
| 3169 | EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(PSmallestNormalized))); |
| 3170 | EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(MSmallestNormalized))); |
| 3171 | } |
| 3172 | |
| 3173 | TEST(APFloatTest, neg) { |
| 3174 | APFloat One = APFloat(APFloat::IEEEsingle(), "1.0" ); |
| 3175 | APFloat NegOne = APFloat(APFloat::IEEEsingle(), "-1.0" ); |
| 3176 | APFloat Zero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 3177 | APFloat NegZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 3178 | APFloat Inf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 3179 | APFloat NegInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 3180 | APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 3181 | APFloat NegQNaN = APFloat::getNaN(APFloat::IEEEsingle(), true); |
| 3182 | |
| 3183 | EXPECT_TRUE(NegOne.bitwiseIsEqual(neg(One))); |
| 3184 | EXPECT_TRUE(One.bitwiseIsEqual(neg(NegOne))); |
| 3185 | EXPECT_TRUE(NegZero.bitwiseIsEqual(neg(Zero))); |
| 3186 | EXPECT_TRUE(Zero.bitwiseIsEqual(neg(NegZero))); |
| 3187 | EXPECT_TRUE(NegInf.bitwiseIsEqual(neg(Inf))); |
| 3188 | EXPECT_TRUE(Inf.bitwiseIsEqual(neg(NegInf))); |
| 3189 | EXPECT_TRUE(NegInf.bitwiseIsEqual(neg(Inf))); |
| 3190 | EXPECT_TRUE(Inf.bitwiseIsEqual(neg(NegInf))); |
| 3191 | EXPECT_TRUE(NegQNaN.bitwiseIsEqual(neg(QNaN))); |
| 3192 | EXPECT_TRUE(QNaN.bitwiseIsEqual(neg(NegQNaN))); |
| 3193 | |
| 3194 | EXPECT_TRUE(NegOne.bitwiseIsEqual(-One)); |
| 3195 | EXPECT_TRUE(One.bitwiseIsEqual(-NegOne)); |
| 3196 | EXPECT_TRUE(NegZero.bitwiseIsEqual(-Zero)); |
| 3197 | EXPECT_TRUE(Zero.bitwiseIsEqual(-NegZero)); |
| 3198 | EXPECT_TRUE(NegInf.bitwiseIsEqual(-Inf)); |
| 3199 | EXPECT_TRUE(Inf.bitwiseIsEqual(-NegInf)); |
| 3200 | EXPECT_TRUE(NegInf.bitwiseIsEqual(-Inf)); |
| 3201 | EXPECT_TRUE(Inf.bitwiseIsEqual(-NegInf)); |
| 3202 | EXPECT_TRUE(NegQNaN.bitwiseIsEqual(-QNaN)); |
| 3203 | EXPECT_TRUE(QNaN.bitwiseIsEqual(-NegQNaN)); |
| 3204 | } |
| 3205 | |
| 3206 | TEST(APFloatTest, ilogb) { |
| 3207 | EXPECT_EQ(-1074, ilogb(APFloat::getSmallest(APFloat::IEEEdouble(), false))); |
| 3208 | EXPECT_EQ(-1074, ilogb(APFloat::getSmallest(APFloat::IEEEdouble(), true))); |
| 3209 | EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep-1024" ))); |
| 3210 | EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep-1023" ))); |
| 3211 | EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble(), "-0x1.ffffffffffffep-1023" ))); |
| 3212 | EXPECT_EQ(-51, ilogb(APFloat(APFloat::IEEEdouble(), "0x1p-51" ))); |
| 3213 | EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp-1023" ))); |
| 3214 | EXPECT_EQ(-2, ilogb(APFloat(APFloat::IEEEdouble(), "0x0.ffffp-1" ))); |
| 3215 | EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble(), "0x1.fffep-1023" ))); |
| 3216 | EXPECT_EQ(1023, ilogb(APFloat::getLargest(APFloat::IEEEdouble(), false))); |
| 3217 | EXPECT_EQ(1023, ilogb(APFloat::getLargest(APFloat::IEEEdouble(), true))); |
| 3218 | |
| 3219 | |
| 3220 | EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle(), "0x1p+0" ))); |
| 3221 | EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle(), "-0x1p+0" ))); |
| 3222 | EXPECT_EQ(42, ilogb(APFloat(APFloat::IEEEsingle(), "0x1p+42" ))); |
| 3223 | EXPECT_EQ(-42, ilogb(APFloat(APFloat::IEEEsingle(), "0x1p-42" ))); |
| 3224 | |
| 3225 | EXPECT_EQ(APFloat::IEK_Inf, |
| 3226 | ilogb(APFloat::getInf(APFloat::IEEEsingle(), false))); |
| 3227 | EXPECT_EQ(APFloat::IEK_Inf, |
| 3228 | ilogb(APFloat::getInf(APFloat::IEEEsingle(), true))); |
| 3229 | EXPECT_EQ(APFloat::IEK_Zero, |
| 3230 | ilogb(APFloat::getZero(APFloat::IEEEsingle(), false))); |
| 3231 | EXPECT_EQ(APFloat::IEK_Zero, |
| 3232 | ilogb(APFloat::getZero(APFloat::IEEEsingle(), true))); |
| 3233 | EXPECT_EQ(APFloat::IEK_NaN, |
| 3234 | ilogb(APFloat::getNaN(APFloat::IEEEsingle(), false))); |
| 3235 | EXPECT_EQ(APFloat::IEK_NaN, |
| 3236 | ilogb(APFloat::getSNaN(APFloat::IEEEsingle(), false))); |
| 3237 | |
| 3238 | EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle(), false))); |
| 3239 | EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle(), true))); |
| 3240 | |
| 3241 | EXPECT_EQ(-149, ilogb(APFloat::getSmallest(APFloat::IEEEsingle(), false))); |
| 3242 | EXPECT_EQ(-149, ilogb(APFloat::getSmallest(APFloat::IEEEsingle(), true))); |
| 3243 | EXPECT_EQ(-126, |
| 3244 | ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false))); |
| 3245 | EXPECT_EQ(-126, |
| 3246 | ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true))); |
| 3247 | } |
| 3248 | |
| 3249 | TEST(APFloatTest, scalbn) { |
| 3250 | |
| 3251 | const APFloat::roundingMode RM = APFloat::rmNearestTiesToEven; |
| 3252 | EXPECT_TRUE( |
| 3253 | APFloat(APFloat::IEEEsingle(), "0x1p+0" ) |
| 3254 | .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle(), "0x1p+0" ), 0, RM))); |
| 3255 | EXPECT_TRUE( |
| 3256 | APFloat(APFloat::IEEEsingle(), "0x1p+42" ) |
| 3257 | .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle(), "0x1p+0" ), 42, RM))); |
| 3258 | EXPECT_TRUE( |
| 3259 | APFloat(APFloat::IEEEsingle(), "0x1p-42" ) |
| 3260 | .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle(), "0x1p+0" ), -42, RM))); |
| 3261 | |
| 3262 | APFloat PInf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 3263 | APFloat MInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 3264 | APFloat PZero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 3265 | APFloat MZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 3266 | APFloat QPNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 3267 | APFloat QMNaN = APFloat::getNaN(APFloat::IEEEsingle(), true); |
| 3268 | APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle(), false); |
| 3269 | |
| 3270 | EXPECT_TRUE(PInf.bitwiseIsEqual(scalbn(PInf, 0, RM))); |
| 3271 | EXPECT_TRUE(MInf.bitwiseIsEqual(scalbn(MInf, 0, RM))); |
| 3272 | EXPECT_TRUE(PZero.bitwiseIsEqual(scalbn(PZero, 0, RM))); |
| 3273 | EXPECT_TRUE(MZero.bitwiseIsEqual(scalbn(MZero, 0, RM))); |
| 3274 | EXPECT_TRUE(QPNaN.bitwiseIsEqual(scalbn(QPNaN, 0, RM))); |
| 3275 | EXPECT_TRUE(QMNaN.bitwiseIsEqual(scalbn(QMNaN, 0, RM))); |
| 3276 | EXPECT_FALSE(scalbn(SNaN, 0, RM).isSignaling()); |
| 3277 | |
| 3278 | APFloat ScalbnSNaN = scalbn(SNaN, 1, RM); |
| 3279 | EXPECT_TRUE(ScalbnSNaN.isNaN() && !ScalbnSNaN.isSignaling()); |
| 3280 | |
| 3281 | // Make sure highest bit of payload is preserved. |
| 3282 | const APInt Payload(64, (UINT64_C(1) << 50) | |
| 3283 | (UINT64_C(1) << 49) | |
| 3284 | (UINT64_C(1234) << 32) | |
| 3285 | 1); |
| 3286 | |
| 3287 | APFloat SNaNWithPayload = APFloat::getSNaN(APFloat::IEEEdouble(), false, |
| 3288 | &Payload); |
| 3289 | APFloat QuietPayload = scalbn(SNaNWithPayload, 1, RM); |
| 3290 | EXPECT_TRUE(QuietPayload.isNaN() && !QuietPayload.isSignaling()); |
| 3291 | EXPECT_EQ(Payload, QuietPayload.bitcastToAPInt().getLoBits(51)); |
| 3292 | |
| 3293 | EXPECT_TRUE(PInf.bitwiseIsEqual( |
| 3294 | scalbn(APFloat(APFloat::IEEEsingle(), "0x1p+0" ), 128, RM))); |
| 3295 | EXPECT_TRUE(MInf.bitwiseIsEqual( |
| 3296 | scalbn(APFloat(APFloat::IEEEsingle(), "-0x1p+0" ), 128, RM))); |
| 3297 | EXPECT_TRUE(PInf.bitwiseIsEqual( |
| 3298 | scalbn(APFloat(APFloat::IEEEsingle(), "0x1p+127" ), 1, RM))); |
| 3299 | EXPECT_TRUE(PZero.bitwiseIsEqual( |
| 3300 | scalbn(APFloat(APFloat::IEEEsingle(), "0x1p-127" ), -127, RM))); |
| 3301 | EXPECT_TRUE(MZero.bitwiseIsEqual( |
| 3302 | scalbn(APFloat(APFloat::IEEEsingle(), "-0x1p-127" ), -127, RM))); |
| 3303 | EXPECT_TRUE(APFloat(APFloat::IEEEsingle(), "-0x1p-149" ).bitwiseIsEqual( |
| 3304 | scalbn(APFloat(APFloat::IEEEsingle(), "-0x1p-127" ), -22, RM))); |
| 3305 | EXPECT_TRUE(PZero.bitwiseIsEqual( |
| 3306 | scalbn(APFloat(APFloat::IEEEsingle(), "0x1p-126" ), -24, RM))); |
| 3307 | |
| 3308 | |
| 3309 | APFloat SmallestF64 = APFloat::getSmallest(APFloat::IEEEdouble(), false); |
| 3310 | APFloat NegSmallestF64 = APFloat::getSmallest(APFloat::IEEEdouble(), true); |
| 3311 | |
| 3312 | APFloat LargestF64 = APFloat::getLargest(APFloat::IEEEdouble(), false); |
| 3313 | APFloat NegLargestF64 = APFloat::getLargest(APFloat::IEEEdouble(), true); |
| 3314 | |
| 3315 | APFloat SmallestNormalizedF64 |
| 3316 | = APFloat::getSmallestNormalized(APFloat::IEEEdouble(), false); |
| 3317 | APFloat NegSmallestNormalizedF64 |
| 3318 | = APFloat::getSmallestNormalized(APFloat::IEEEdouble(), true); |
| 3319 | |
| 3320 | APFloat LargestDenormalF64(APFloat::IEEEdouble(), "0x1.ffffffffffffep-1023" ); |
| 3321 | APFloat NegLargestDenormalF64(APFloat::IEEEdouble(), "-0x1.ffffffffffffep-1023" ); |
| 3322 | |
| 3323 | |
| 3324 | EXPECT_TRUE(SmallestF64.bitwiseIsEqual( |
| 3325 | scalbn(APFloat(APFloat::IEEEdouble(), "0x1p-1074" ), 0, RM))); |
| 3326 | EXPECT_TRUE(NegSmallestF64.bitwiseIsEqual( |
| 3327 | scalbn(APFloat(APFloat::IEEEdouble(), "-0x1p-1074" ), 0, RM))); |
| 3328 | |
| 3329 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1p+1023" ) |
| 3330 | .bitwiseIsEqual(scalbn(SmallestF64, 2097, RM))); |
| 3331 | |
| 3332 | EXPECT_TRUE(scalbn(SmallestF64, -2097, RM).isPosZero()); |
| 3333 | EXPECT_TRUE(scalbn(SmallestF64, -2098, RM).isPosZero()); |
| 3334 | EXPECT_TRUE(scalbn(SmallestF64, -2099, RM).isPosZero()); |
| 3335 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1p+1022" ) |
| 3336 | .bitwiseIsEqual(scalbn(SmallestF64, 2096, RM))); |
| 3337 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1p+1023" ) |
| 3338 | .bitwiseIsEqual(scalbn(SmallestF64, 2097, RM))); |
| 3339 | EXPECT_TRUE(scalbn(SmallestF64, 2098, RM).isInfinity()); |
| 3340 | EXPECT_TRUE(scalbn(SmallestF64, 2099, RM).isInfinity()); |
| 3341 | |
| 3342 | // Test for integer overflows when adding to exponent. |
| 3343 | EXPECT_TRUE(scalbn(SmallestF64, -INT_MAX, RM).isPosZero()); |
| 3344 | EXPECT_TRUE(scalbn(LargestF64, INT_MAX, RM).isInfinity()); |
| 3345 | |
| 3346 | EXPECT_TRUE(LargestDenormalF64 |
| 3347 | .bitwiseIsEqual(scalbn(LargestDenormalF64, 0, RM))); |
| 3348 | EXPECT_TRUE(NegLargestDenormalF64 |
| 3349 | .bitwiseIsEqual(scalbn(NegLargestDenormalF64, 0, RM))); |
| 3350 | |
| 3351 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep-1022" ) |
| 3352 | .bitwiseIsEqual(scalbn(LargestDenormalF64, 1, RM))); |
| 3353 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-0x1.ffffffffffffep-1021" ) |
| 3354 | .bitwiseIsEqual(scalbn(NegLargestDenormalF64, 2, RM))); |
| 3355 | |
| 3356 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep+1" ) |
| 3357 | .bitwiseIsEqual(scalbn(LargestDenormalF64, 1024, RM))); |
| 3358 | EXPECT_TRUE(scalbn(LargestDenormalF64, -1023, RM).isPosZero()); |
| 3359 | EXPECT_TRUE(scalbn(LargestDenormalF64, -1024, RM).isPosZero()); |
| 3360 | EXPECT_TRUE(scalbn(LargestDenormalF64, -2048, RM).isPosZero()); |
| 3361 | EXPECT_TRUE(scalbn(LargestDenormalF64, 2047, RM).isInfinity()); |
| 3362 | EXPECT_TRUE(scalbn(LargestDenormalF64, 2098, RM).isInfinity()); |
| 3363 | EXPECT_TRUE(scalbn(LargestDenormalF64, 2099, RM).isInfinity()); |
| 3364 | |
| 3365 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep-2" ) |
| 3366 | .bitwiseIsEqual(scalbn(LargestDenormalF64, 1021, RM))); |
| 3367 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep-1" ) |
| 3368 | .bitwiseIsEqual(scalbn(LargestDenormalF64, 1022, RM))); |
| 3369 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep+0" ) |
| 3370 | .bitwiseIsEqual(scalbn(LargestDenormalF64, 1023, RM))); |
| 3371 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep+1023" ) |
| 3372 | .bitwiseIsEqual(scalbn(LargestDenormalF64, 2046, RM))); |
| 3373 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1p+974" ) |
| 3374 | .bitwiseIsEqual(scalbn(SmallestF64, 2048, RM))); |
| 3375 | |
| 3376 | APFloat RandomDenormalF64(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp+51" ); |
| 3377 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp-972" ) |
| 3378 | .bitwiseIsEqual(scalbn(RandomDenormalF64, -1023, RM))); |
| 3379 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp-1" ) |
| 3380 | .bitwiseIsEqual(scalbn(RandomDenormalF64, -52, RM))); |
| 3381 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp-2" ) |
| 3382 | .bitwiseIsEqual(scalbn(RandomDenormalF64, -53, RM))); |
| 3383 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp+0" ) |
| 3384 | .bitwiseIsEqual(scalbn(RandomDenormalF64, -51, RM))); |
| 3385 | |
| 3386 | EXPECT_TRUE(scalbn(RandomDenormalF64, -2097, RM).isPosZero()); |
| 3387 | EXPECT_TRUE(scalbn(RandomDenormalF64, -2090, RM).isPosZero()); |
| 3388 | |
| 3389 | |
| 3390 | EXPECT_TRUE( |
| 3391 | APFloat(APFloat::IEEEdouble(), "-0x1p-1073" ) |
| 3392 | .bitwiseIsEqual(scalbn(NegLargestF64, -2097, RM))); |
| 3393 | |
| 3394 | EXPECT_TRUE( |
| 3395 | APFloat(APFloat::IEEEdouble(), "-0x1p-1024" ) |
| 3396 | .bitwiseIsEqual(scalbn(NegLargestF64, -2048, RM))); |
| 3397 | |
| 3398 | EXPECT_TRUE( |
| 3399 | APFloat(APFloat::IEEEdouble(), "0x1p-1073" ) |
| 3400 | .bitwiseIsEqual(scalbn(LargestF64, -2097, RM))); |
| 3401 | |
| 3402 | EXPECT_TRUE( |
| 3403 | APFloat(APFloat::IEEEdouble(), "0x1p-1074" ) |
| 3404 | .bitwiseIsEqual(scalbn(LargestF64, -2098, RM))); |
| 3405 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-0x1p-1074" ) |
| 3406 | .bitwiseIsEqual(scalbn(NegLargestF64, -2098, RM))); |
| 3407 | EXPECT_TRUE(scalbn(NegLargestF64, -2099, RM).isNegZero()); |
| 3408 | EXPECT_TRUE(scalbn(LargestF64, 1, RM).isInfinity()); |
| 3409 | |
| 3410 | |
| 3411 | EXPECT_TRUE( |
| 3412 | APFloat(APFloat::IEEEdouble(), "0x1p+0" ) |
| 3413 | .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEdouble(), "0x1p+52" ), -52, RM))); |
| 3414 | |
| 3415 | EXPECT_TRUE( |
| 3416 | APFloat(APFloat::IEEEdouble(), "0x1p-103" ) |
| 3417 | .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEdouble(), "0x1p-51" ), -52, RM))); |
| 3418 | } |
| 3419 | |
| 3420 | TEST(APFloatTest, frexp) { |
| 3421 | const APFloat::roundingMode RM = APFloat::rmNearestTiesToEven; |
| 3422 | |
| 3423 | APFloat PZero = APFloat::getZero(APFloat::IEEEdouble(), false); |
| 3424 | APFloat MZero = APFloat::getZero(APFloat::IEEEdouble(), true); |
| 3425 | APFloat One(1.0); |
| 3426 | APFloat MOne(-1.0); |
| 3427 | APFloat Two(2.0); |
| 3428 | APFloat MTwo(-2.0); |
| 3429 | |
| 3430 | APFloat LargestDenormal(APFloat::IEEEdouble(), "0x1.ffffffffffffep-1023" ); |
| 3431 | APFloat NegLargestDenormal(APFloat::IEEEdouble(), "-0x1.ffffffffffffep-1023" ); |
| 3432 | |
| 3433 | APFloat Smallest = APFloat::getSmallest(APFloat::IEEEdouble(), false); |
| 3434 | APFloat NegSmallest = APFloat::getSmallest(APFloat::IEEEdouble(), true); |
| 3435 | |
| 3436 | APFloat Largest = APFloat::getLargest(APFloat::IEEEdouble(), false); |
| 3437 | APFloat NegLargest = APFloat::getLargest(APFloat::IEEEdouble(), true); |
| 3438 | |
| 3439 | APFloat PInf = APFloat::getInf(APFloat::IEEEdouble(), false); |
| 3440 | APFloat MInf = APFloat::getInf(APFloat::IEEEdouble(), true); |
| 3441 | |
| 3442 | APFloat QPNaN = APFloat::getNaN(APFloat::IEEEdouble(), false); |
| 3443 | APFloat QMNaN = APFloat::getNaN(APFloat::IEEEdouble(), true); |
| 3444 | APFloat SNaN = APFloat::getSNaN(APFloat::IEEEdouble(), false); |
| 3445 | |
| 3446 | // Make sure highest bit of payload is preserved. |
| 3447 | const APInt Payload(64, (UINT64_C(1) << 50) | |
| 3448 | (UINT64_C(1) << 49) | |
| 3449 | (UINT64_C(1234) << 32) | |
| 3450 | 1); |
| 3451 | |
| 3452 | APFloat SNaNWithPayload = APFloat::getSNaN(APFloat::IEEEdouble(), false, |
| 3453 | &Payload); |
| 3454 | |
| 3455 | APFloat SmallestNormalized |
| 3456 | = APFloat::getSmallestNormalized(APFloat::IEEEdouble(), false); |
| 3457 | APFloat NegSmallestNormalized |
| 3458 | = APFloat::getSmallestNormalized(APFloat::IEEEdouble(), true); |
| 3459 | |
| 3460 | int Exp; |
| 3461 | APFloat Frac(APFloat::IEEEdouble()); |
| 3462 | |
| 3463 | |
| 3464 | Frac = frexp(PZero, Exp, RM); |
| 3465 | EXPECT_EQ(0, Exp); |
| 3466 | EXPECT_TRUE(Frac.isPosZero()); |
| 3467 | |
| 3468 | Frac = frexp(MZero, Exp, RM); |
| 3469 | EXPECT_EQ(0, Exp); |
| 3470 | EXPECT_TRUE(Frac.isNegZero()); |
| 3471 | |
| 3472 | |
| 3473 | Frac = frexp(One, Exp, RM); |
| 3474 | EXPECT_EQ(1, Exp); |
| 3475 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1p-1" ).bitwiseIsEqual(Frac)); |
| 3476 | |
| 3477 | Frac = frexp(MOne, Exp, RM); |
| 3478 | EXPECT_EQ(1, Exp); |
| 3479 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-0x1p-1" ).bitwiseIsEqual(Frac)); |
| 3480 | |
| 3481 | Frac = frexp(LargestDenormal, Exp, RM); |
| 3482 | EXPECT_EQ(-1022, Exp); |
| 3483 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.ffffffffffffep-1" ).bitwiseIsEqual(Frac)); |
| 3484 | |
| 3485 | Frac = frexp(NegLargestDenormal, Exp, RM); |
| 3486 | EXPECT_EQ(-1022, Exp); |
| 3487 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-0x1.ffffffffffffep-1" ).bitwiseIsEqual(Frac)); |
| 3488 | |
| 3489 | |
| 3490 | Frac = frexp(Smallest, Exp, RM); |
| 3491 | EXPECT_EQ(-1073, Exp); |
| 3492 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1p-1" ).bitwiseIsEqual(Frac)); |
| 3493 | |
| 3494 | Frac = frexp(NegSmallest, Exp, RM); |
| 3495 | EXPECT_EQ(-1073, Exp); |
| 3496 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-0x1p-1" ).bitwiseIsEqual(Frac)); |
| 3497 | |
| 3498 | |
| 3499 | Frac = frexp(Largest, Exp, RM); |
| 3500 | EXPECT_EQ(1024, Exp); |
| 3501 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.fffffffffffffp-1" ).bitwiseIsEqual(Frac)); |
| 3502 | |
| 3503 | Frac = frexp(NegLargest, Exp, RM); |
| 3504 | EXPECT_EQ(1024, Exp); |
| 3505 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "-0x1.fffffffffffffp-1" ).bitwiseIsEqual(Frac)); |
| 3506 | |
| 3507 | |
| 3508 | Frac = frexp(PInf, Exp, RM); |
| 3509 | EXPECT_EQ(INT_MAX, Exp); |
| 3510 | EXPECT_TRUE(Frac.isInfinity() && !Frac.isNegative()); |
| 3511 | |
| 3512 | Frac = frexp(MInf, Exp, RM); |
| 3513 | EXPECT_EQ(INT_MAX, Exp); |
| 3514 | EXPECT_TRUE(Frac.isInfinity() && Frac.isNegative()); |
| 3515 | |
| 3516 | Frac = frexp(QPNaN, Exp, RM); |
| 3517 | EXPECT_EQ(INT_MIN, Exp); |
| 3518 | EXPECT_TRUE(Frac.isNaN()); |
| 3519 | |
| 3520 | Frac = frexp(QMNaN, Exp, RM); |
| 3521 | EXPECT_EQ(INT_MIN, Exp); |
| 3522 | EXPECT_TRUE(Frac.isNaN()); |
| 3523 | |
| 3524 | Frac = frexp(SNaN, Exp, RM); |
| 3525 | EXPECT_EQ(INT_MIN, Exp); |
| 3526 | EXPECT_TRUE(Frac.isNaN() && !Frac.isSignaling()); |
| 3527 | |
| 3528 | Frac = frexp(SNaNWithPayload, Exp, RM); |
| 3529 | EXPECT_EQ(INT_MIN, Exp); |
| 3530 | EXPECT_TRUE(Frac.isNaN() && !Frac.isSignaling()); |
| 3531 | EXPECT_EQ(Payload, Frac.bitcastToAPInt().getLoBits(51)); |
| 3532 | |
| 3533 | Frac = frexp(APFloat(APFloat::IEEEdouble(), "0x0.ffffp-1" ), Exp, RM); |
| 3534 | EXPECT_EQ(-1, Exp); |
| 3535 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.fffep-1" ).bitwiseIsEqual(Frac)); |
| 3536 | |
| 3537 | Frac = frexp(APFloat(APFloat::IEEEdouble(), "0x1p-51" ), Exp, RM); |
| 3538 | EXPECT_EQ(-50, Exp); |
| 3539 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1p-1" ).bitwiseIsEqual(Frac)); |
| 3540 | |
| 3541 | Frac = frexp(APFloat(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp+51" ), Exp, RM); |
| 3542 | EXPECT_EQ(52, Exp); |
| 3543 | EXPECT_TRUE(APFloat(APFloat::IEEEdouble(), "0x1.c60f120d9f87cp-1" ).bitwiseIsEqual(Frac)); |
| 3544 | } |
| 3545 | |
| 3546 | TEST(APFloatTest, mod) { |
| 3547 | { |
| 3548 | APFloat f1(APFloat::IEEEdouble(), "1.5" ); |
| 3549 | APFloat f2(APFloat::IEEEdouble(), "1.0" ); |
| 3550 | APFloat expected(APFloat::IEEEdouble(), "0.5" ); |
| 3551 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3552 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3553 | } |
| 3554 | { |
| 3555 | APFloat f1(APFloat::IEEEdouble(), "0.5" ); |
| 3556 | APFloat f2(APFloat::IEEEdouble(), "1.0" ); |
| 3557 | APFloat expected(APFloat::IEEEdouble(), "0.5" ); |
| 3558 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3559 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3560 | } |
| 3561 | { |
| 3562 | APFloat f1(APFloat::IEEEdouble(), "0x1.3333333333333p-2" ); // 0.3 |
| 3563 | APFloat f2(APFloat::IEEEdouble(), "0x1.47ae147ae147bp-7" ); // 0.01 |
| 3564 | APFloat expected(APFloat::IEEEdouble(), |
| 3565 | "0x1.47ae147ae1471p-7" ); // 0.009999999999999983 |
| 3566 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3567 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3568 | } |
| 3569 | { |
| 3570 | APFloat f1(APFloat::IEEEdouble(), "0x1p64" ); // 1.8446744073709552e19 |
| 3571 | APFloat f2(APFloat::IEEEdouble(), "1.5" ); |
| 3572 | APFloat expected(APFloat::IEEEdouble(), "1.0" ); |
| 3573 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3574 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3575 | } |
| 3576 | { |
| 3577 | APFloat f1(APFloat::IEEEdouble(), "0x1p1000" ); |
| 3578 | APFloat f2(APFloat::IEEEdouble(), "0x1p-1000" ); |
| 3579 | APFloat expected(APFloat::IEEEdouble(), "0.0" ); |
| 3580 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3581 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3582 | } |
| 3583 | { |
| 3584 | APFloat f1(APFloat::IEEEdouble(), "0.0" ); |
| 3585 | APFloat f2(APFloat::IEEEdouble(), "1.0" ); |
| 3586 | APFloat expected(APFloat::IEEEdouble(), "0.0" ); |
| 3587 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3588 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3589 | } |
| 3590 | { |
| 3591 | APFloat f1(APFloat::IEEEdouble(), "1.0" ); |
| 3592 | APFloat f2(APFloat::IEEEdouble(), "0.0" ); |
| 3593 | EXPECT_EQ(f1.mod(f2), APFloat::opInvalidOp); |
| 3594 | EXPECT_TRUE(f1.isNaN()); |
| 3595 | } |
| 3596 | { |
| 3597 | APFloat f1(APFloat::IEEEdouble(), "0.0" ); |
| 3598 | APFloat f2(APFloat::IEEEdouble(), "0.0" ); |
| 3599 | EXPECT_EQ(f1.mod(f2), APFloat::opInvalidOp); |
| 3600 | EXPECT_TRUE(f1.isNaN()); |
| 3601 | } |
| 3602 | { |
| 3603 | APFloat f1 = APFloat::getInf(APFloat::IEEEdouble(), false); |
| 3604 | APFloat f2(APFloat::IEEEdouble(), "1.0" ); |
| 3605 | EXPECT_EQ(f1.mod(f2), APFloat::opInvalidOp); |
| 3606 | EXPECT_TRUE(f1.isNaN()); |
| 3607 | } |
| 3608 | { |
| 3609 | APFloat f1(APFloat::IEEEdouble(), "-4.0" ); |
| 3610 | APFloat f2(APFloat::IEEEdouble(), "-2.0" ); |
| 3611 | APFloat expected(APFloat::IEEEdouble(), "-0.0" ); |
| 3612 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3613 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3614 | } |
| 3615 | { |
| 3616 | APFloat f1(APFloat::IEEEdouble(), "-4.0" ); |
| 3617 | APFloat f2(APFloat::IEEEdouble(), "2.0" ); |
| 3618 | APFloat expected(APFloat::IEEEdouble(), "-0.0" ); |
| 3619 | EXPECT_EQ(f1.mod(f2), APFloat::opOK); |
| 3620 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 3621 | } |
| 3622 | } |
| 3623 | |
| 3624 | TEST(APFloatTest, remainder) { |
| 3625 | // Test Special Cases against each other and normal values. |
| 3626 | |
| 3627 | APFloat PInf = APFloat::getInf(APFloat::IEEEsingle(), false); |
| 3628 | APFloat MInf = APFloat::getInf(APFloat::IEEEsingle(), true); |
| 3629 | APFloat PZero = APFloat::getZero(APFloat::IEEEsingle(), false); |
| 3630 | APFloat MZero = APFloat::getZero(APFloat::IEEEsingle(), true); |
| 3631 | APFloat QNaN = APFloat::getNaN(APFloat::IEEEsingle(), false); |
| 3632 | APFloat SNaN = APFloat(APFloat::IEEEsingle(), "snan123" ); |
| 3633 | APFloat PNormalValue = APFloat(APFloat::IEEEsingle(), "0x1p+0" ); |
| 3634 | APFloat MNormalValue = APFloat(APFloat::IEEEsingle(), "-0x1p+0" ); |
| 3635 | APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), false); |
| 3636 | APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle(), true); |
| 3637 | APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), false); |
| 3638 | APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle(), true); |
| 3639 | APFloat PSmallestNormalized = |
| 3640 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), false); |
| 3641 | APFloat MSmallestNormalized = |
| 3642 | APFloat::getSmallestNormalized(APFloat::IEEEsingle(), true); |
| 3643 | |
| 3644 | APFloat PVal1(APFloat::IEEEsingle(), "0x1.fffffep+126" ); |
| 3645 | APFloat MVal1(APFloat::IEEEsingle(), "-0x1.fffffep+126" ); |
| 3646 | APFloat PVal2(APFloat::IEEEsingle(), "0x1.fffffep-126" ); |
| 3647 | APFloat MVal2(APFloat::IEEEsingle(), "-0x1.fffffep-126" ); |
| 3648 | APFloat PVal3(APFloat::IEEEsingle(), "0x1p-125" ); |
| 3649 | APFloat MVal3(APFloat::IEEEsingle(), "-0x1p-125" ); |
| 3650 | APFloat PVal4(APFloat::IEEEsingle(), "0x1p+127" ); |
| 3651 | APFloat MVal4(APFloat::IEEEsingle(), "-0x1p+127" ); |
| 3652 | APFloat PVal5(APFloat::IEEEsingle(), "1.5" ); |
| 3653 | APFloat MVal5(APFloat::IEEEsingle(), "-1.5" ); |
| 3654 | APFloat PVal6(APFloat::IEEEsingle(), "1" ); |
| 3655 | APFloat MVal6(APFloat::IEEEsingle(), "-1" ); |
| 3656 | |
| 3657 | struct { |
| 3658 | APFloat x; |
| 3659 | APFloat y; |
| 3660 | const char *result; |
| 3661 | int status; |
| 3662 | int category; |
| 3663 | } SpecialCaseTests[] = { |
| 3664 | { PInf, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3665 | { PInf, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3666 | { PInf, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3667 | { PInf, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3668 | { PInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3669 | { PInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3670 | { PInf, PNormalValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3671 | { PInf, MNormalValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3672 | { PInf, PLargestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3673 | { PInf, MLargestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3674 | { PInf, PSmallestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3675 | { PInf, MSmallestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3676 | { PInf, PSmallestNormalized, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3677 | { PInf, MSmallestNormalized, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3678 | { MInf, PInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3679 | { MInf, MInf, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3680 | { MInf, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3681 | { MInf, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3682 | { MInf, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3683 | { MInf, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3684 | { MInf, PNormalValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3685 | { MInf, MNormalValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3686 | { MInf, PLargestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3687 | { MInf, MLargestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3688 | { MInf, PSmallestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3689 | { MInf, MSmallestValue, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3690 | { MInf, PSmallestNormalized, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3691 | { MInf, MSmallestNormalized, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3692 | { PZero, PInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3693 | { PZero, MInf, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3694 | { PZero, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3695 | { PZero, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3696 | { PZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3697 | { PZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3698 | { PZero, PNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3699 | { PZero, MNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3700 | { PZero, PLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3701 | { PZero, MLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3702 | { PZero, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3703 | { PZero, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3704 | { PZero, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3705 | { PZero, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3706 | { MZero, PInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3707 | { MZero, MInf, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3708 | { MZero, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3709 | { MZero, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3710 | { MZero, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3711 | { MZero, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3712 | { MZero, PNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3713 | { MZero, MNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3714 | { MZero, PLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3715 | { MZero, MLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3716 | { MZero, PSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3717 | { MZero, MSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3718 | { MZero, PSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3719 | { MZero, MSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3720 | { QNaN, PInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3721 | { QNaN, MInf, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3722 | { QNaN, PZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3723 | { QNaN, MZero, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3724 | { QNaN, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3725 | { QNaN, SNaN, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3726 | { QNaN, PNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3727 | { QNaN, MNormalValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3728 | { QNaN, PLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3729 | { QNaN, MLargestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3730 | { QNaN, PSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3731 | { QNaN, MSmallestValue, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3732 | { QNaN, PSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3733 | { QNaN, MSmallestNormalized, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3734 | { SNaN, PInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3735 | { SNaN, MInf, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3736 | { SNaN, PZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3737 | { SNaN, MZero, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3738 | { SNaN, QNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3739 | { SNaN, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3740 | { SNaN, PNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3741 | { SNaN, MNormalValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3742 | { SNaN, PLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3743 | { SNaN, MLargestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3744 | { SNaN, PSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3745 | { SNaN, MSmallestValue, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3746 | { SNaN, PSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3747 | { SNaN, MSmallestNormalized, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3748 | { PNormalValue, PInf, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3749 | { PNormalValue, MInf, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3750 | { PNormalValue, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3751 | { PNormalValue, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3752 | { PNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3753 | { PNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3754 | { PNormalValue, PNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3755 | { PNormalValue, MNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3756 | { PNormalValue, PLargestValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3757 | { PNormalValue, MLargestValue, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3758 | { PNormalValue, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3759 | { PNormalValue, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3760 | { PNormalValue, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3761 | { PNormalValue, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3762 | { MNormalValue, PInf, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3763 | { MNormalValue, MInf, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3764 | { MNormalValue, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3765 | { MNormalValue, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3766 | { MNormalValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3767 | { MNormalValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3768 | { MNormalValue, PNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3769 | { MNormalValue, MNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3770 | { MNormalValue, PLargestValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3771 | { MNormalValue, MLargestValue, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3772 | { MNormalValue, PSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3773 | { MNormalValue, MSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3774 | { MNormalValue, PSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3775 | { MNormalValue, MSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3776 | { PLargestValue, PInf, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 3777 | { PLargestValue, MInf, "0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 3778 | { PLargestValue, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3779 | { PLargestValue, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3780 | { PLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3781 | { PLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3782 | { PLargestValue, PNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3783 | { PLargestValue, MNormalValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3784 | { PLargestValue, PLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3785 | { PLargestValue, MLargestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3786 | { PLargestValue, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3787 | { PLargestValue, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3788 | { PLargestValue, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3789 | { PLargestValue, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3790 | { MLargestValue, PInf, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 3791 | { MLargestValue, MInf, "-0x1.fffffep+127" , APFloat::opOK, APFloat::fcNormal }, |
| 3792 | { MLargestValue, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3793 | { MLargestValue, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3794 | { MLargestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3795 | { MLargestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3796 | { MLargestValue, PNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3797 | { MLargestValue, MNormalValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3798 | { MLargestValue, PLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3799 | { MLargestValue, MLargestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3800 | { MLargestValue, PSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3801 | { MLargestValue, MSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3802 | { MLargestValue, PSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3803 | { MLargestValue, MSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3804 | { PSmallestValue, PInf, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3805 | { PSmallestValue, MInf, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3806 | { PSmallestValue, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3807 | { PSmallestValue, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3808 | { PSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3809 | { PSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3810 | { PSmallestValue, PNormalValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3811 | { PSmallestValue, MNormalValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3812 | { PSmallestValue, PLargestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3813 | { PSmallestValue, MLargestValue, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3814 | { PSmallestValue, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3815 | { PSmallestValue, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3816 | { PSmallestValue, PSmallestNormalized, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3817 | { PSmallestValue, MSmallestNormalized, "0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3818 | { MSmallestValue, PInf, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3819 | { MSmallestValue, MInf, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3820 | { MSmallestValue, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3821 | { MSmallestValue, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3822 | { MSmallestValue, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3823 | { MSmallestValue, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3824 | { MSmallestValue, PNormalValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3825 | { MSmallestValue, MNormalValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3826 | { MSmallestValue, PLargestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3827 | { MSmallestValue, MLargestValue, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3828 | { MSmallestValue, PSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3829 | { MSmallestValue, MSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3830 | { MSmallestValue, PSmallestNormalized, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3831 | { MSmallestValue, MSmallestNormalized, "-0x1p-149" , APFloat::opOK, APFloat::fcNormal }, |
| 3832 | { PSmallestNormalized, PInf, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3833 | { PSmallestNormalized, MInf, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3834 | { PSmallestNormalized, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3835 | { PSmallestNormalized, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3836 | { PSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3837 | { PSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3838 | { PSmallestNormalized, PNormalValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3839 | { PSmallestNormalized, MNormalValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3840 | { PSmallestNormalized, PLargestValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3841 | { PSmallestNormalized, MLargestValue, "0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3842 | { PSmallestNormalized, PSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3843 | { PSmallestNormalized, MSmallestValue, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3844 | { PSmallestNormalized, PSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3845 | { PSmallestNormalized, MSmallestNormalized, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3846 | { MSmallestNormalized, PInf, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3847 | { MSmallestNormalized, MInf, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3848 | { MSmallestNormalized, PZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3849 | { MSmallestNormalized, MZero, "nan" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3850 | { MSmallestNormalized, QNaN, "nan" , APFloat::opOK, APFloat::fcNaN }, |
| 3851 | { MSmallestNormalized, SNaN, "nan123" , APFloat::opInvalidOp, APFloat::fcNaN }, |
| 3852 | { MSmallestNormalized, PNormalValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3853 | { MSmallestNormalized, MNormalValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3854 | { MSmallestNormalized, PLargestValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3855 | { MSmallestNormalized, MLargestValue, "-0x1p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3856 | { MSmallestNormalized, PSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3857 | { MSmallestNormalized, MSmallestValue, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3858 | { MSmallestNormalized, PSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3859 | { MSmallestNormalized, MSmallestNormalized, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3860 | |
| 3861 | { PVal1, PVal1, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3862 | { PVal1, MVal1, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3863 | { PVal1, PVal2, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3864 | { PVal1, MVal2, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3865 | { PVal1, PVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3866 | { PVal1, MVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3867 | { PVal1, PVal4, "-0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3868 | { PVal1, MVal4, "-0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3869 | { PVal1, PVal5, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3870 | { PVal1, MVal5, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3871 | { PVal1, PVal6, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3872 | { PVal1, MVal6, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3873 | { MVal1, PVal1, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3874 | { MVal1, MVal1, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3875 | { MVal1, PVal2, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3876 | { MVal1, MVal2, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3877 | { MVal1, PVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3878 | { MVal1, MVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3879 | { MVal1, PVal4, "0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3880 | { MVal1, MVal4, "0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3881 | { MVal1, PVal5, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3882 | { MVal1, MVal5, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3883 | { MVal1, PVal6, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3884 | { MVal1, MVal6, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3885 | { PVal2, PVal1, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3886 | { PVal2, MVal1, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3887 | { PVal2, PVal2, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3888 | { PVal2, MVal2, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3889 | { PVal2, PVal3, "-0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3890 | { PVal2, MVal3, "-0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3891 | { PVal2, PVal4, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3892 | { PVal2, MVal4, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3893 | { PVal2, PVal5, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3894 | { PVal2, MVal5, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3895 | { PVal2, PVal6, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3896 | { PVal2, MVal6, "0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3897 | { MVal2, PVal1, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3898 | { MVal2, MVal1, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3899 | { MVal2, PVal2, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3900 | { MVal2, MVal2, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3901 | { MVal2, PVal3, "0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3902 | { MVal2, MVal3, "0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3903 | { MVal2, PVal4, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3904 | { MVal2, MVal4, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3905 | { MVal2, PVal5, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3906 | { MVal2, MVal5, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3907 | { MVal2, PVal6, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3908 | { MVal2, MVal6, "-0x1.fffffep-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3909 | { PVal3, PVal1, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3910 | { PVal3, MVal1, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3911 | { PVal3, PVal2, "0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3912 | { PVal3, MVal2, "0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3913 | { PVal3, PVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3914 | { PVal3, MVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3915 | { PVal3, PVal4, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3916 | { PVal3, MVal4, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3917 | { PVal3, PVal5, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3918 | { PVal3, MVal5, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3919 | { PVal3, PVal6, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3920 | { PVal3, MVal6, "0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3921 | { MVal3, PVal1, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3922 | { MVal3, MVal1, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3923 | { MVal3, PVal2, "-0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3924 | { MVal3, MVal2, "-0x0.000002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3925 | { MVal3, PVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3926 | { MVal3, MVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3927 | { MVal3, PVal4, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3928 | { MVal3, MVal4, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3929 | { MVal3, PVal5, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3930 | { MVal3, MVal5, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3931 | { MVal3, PVal6, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3932 | { MVal3, MVal6, "-0x1p-125" , APFloat::opOK, APFloat::fcNormal }, |
| 3933 | { PVal4, PVal1, "0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3934 | { PVal4, MVal1, "0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3935 | { PVal4, PVal2, "0x0.002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3936 | { PVal4, MVal2, "0x0.002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3937 | { PVal4, PVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3938 | { PVal4, MVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3939 | { PVal4, PVal4, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3940 | { PVal4, MVal4, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3941 | { PVal4, PVal5, "0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3942 | { PVal4, MVal5, "0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3943 | { PVal4, PVal6, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3944 | { PVal4, MVal6, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3945 | { MVal4, PVal1, "-0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3946 | { MVal4, MVal1, "-0x1p+103" , APFloat::opOK, APFloat::fcNormal }, |
| 3947 | { MVal4, PVal2, "-0x0.002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3948 | { MVal4, MVal2, "-0x0.002p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3949 | { MVal4, PVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3950 | { MVal4, MVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3951 | { MVal4, PVal4, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3952 | { MVal4, MVal4, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3953 | { MVal4, PVal5, "-0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3954 | { MVal4, MVal5, "-0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3955 | { MVal4, PVal6, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3956 | { MVal4, MVal6, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3957 | { PVal5, PVal1, "1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3958 | { PVal5, MVal1, "1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3959 | { PVal5, PVal2, "0x0.00006p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3960 | { PVal5, MVal2, "0x0.00006p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3961 | { PVal5, PVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3962 | { PVal5, MVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3963 | { PVal5, PVal4, "1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3964 | { PVal5, MVal4, "1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3965 | { PVal5, PVal5, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3966 | { PVal5, MVal5, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3967 | { PVal5, PVal6, "-0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3968 | { PVal5, MVal6, "-0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3969 | { MVal5, PVal1, "-1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3970 | { MVal5, MVal1, "-1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3971 | { MVal5, PVal2, "-0x0.00006p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3972 | { MVal5, MVal2, "-0x0.00006p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3973 | { MVal5, PVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3974 | { MVal5, MVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3975 | { MVal5, PVal4, "-1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3976 | { MVal5, MVal4, "-1.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3977 | { MVal5, PVal5, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3978 | { MVal5, MVal5, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3979 | { MVal5, PVal6, "0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3980 | { MVal5, MVal6, "0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3981 | { PVal6, PVal1, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3982 | { PVal6, MVal1, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3983 | { PVal6, PVal2, "0x0.00004p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3984 | { PVal6, MVal2, "0x0.00004p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3985 | { PVal6, PVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3986 | { PVal6, MVal3, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3987 | { PVal6, PVal4, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3988 | { PVal6, MVal4, "0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3989 | { PVal6, PVal5, "-0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3990 | { PVal6, MVal5, "-0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 3991 | { PVal6, PVal6, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3992 | { PVal6, MVal6, "0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3993 | { MVal6, PVal1, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3994 | { MVal6, MVal1, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 3995 | { MVal6, PVal2, "-0x0.00004p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3996 | { MVal6, MVal2, "-0x0.00004p-126" , APFloat::opOK, APFloat::fcNormal }, |
| 3997 | { MVal6, PVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3998 | { MVal6, MVal3, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 3999 | { MVal6, PVal4, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 4000 | { MVal6, MVal4, "-0x1p+0" , APFloat::opOK, APFloat::fcNormal }, |
| 4001 | { MVal6, PVal5, "0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 4002 | { MVal6, MVal5, "0.5" , APFloat::opOK, APFloat::fcNormal }, |
| 4003 | { MVal6, PVal6, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 4004 | { MVal6, MVal6, "-0x0p+0" , APFloat::opOK, APFloat::fcZero }, |
| 4005 | }; |
| 4006 | |
| 4007 | for (size_t i = 0; i < array_lengthof(SpecialCaseTests); ++i) { |
| 4008 | APFloat x(SpecialCaseTests[i].x); |
| 4009 | APFloat y(SpecialCaseTests[i].y); |
| 4010 | APFloat::opStatus status = x.remainder(y); |
| 4011 | |
| 4012 | APFloat result(x.getSemantics(), SpecialCaseTests[i].result); |
| 4013 | |
| 4014 | EXPECT_TRUE(result.bitwiseIsEqual(x)); |
| 4015 | EXPECT_EQ(SpecialCaseTests[i].status, (int)status); |
| 4016 | EXPECT_EQ(SpecialCaseTests[i].category, (int)x.getCategory()); |
| 4017 | } |
| 4018 | |
| 4019 | { |
| 4020 | APFloat f1(APFloat::IEEEdouble(), "0x1.3333333333333p-2" ); // 0.3 |
| 4021 | APFloat f2(APFloat::IEEEdouble(), "0x1.47ae147ae147bp-7" ); // 0.01 |
| 4022 | APFloat expected(APFloat::IEEEdouble(), "-0x1.4p-56" ); |
| 4023 | EXPECT_EQ(APFloat::opOK, f1.remainder(f2)); |
| 4024 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 4025 | } |
| 4026 | { |
| 4027 | APFloat f1(APFloat::IEEEdouble(), "0x1p64" ); // 1.8446744073709552e19 |
| 4028 | APFloat f2(APFloat::IEEEdouble(), "1.5" ); |
| 4029 | APFloat expected(APFloat::IEEEdouble(), "-0.5" ); |
| 4030 | EXPECT_EQ(APFloat::opOK, f1.remainder(f2)); |
| 4031 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 4032 | } |
| 4033 | { |
| 4034 | APFloat f1(APFloat::IEEEdouble(), "0x1p1000" ); |
| 4035 | APFloat f2(APFloat::IEEEdouble(), "0x1p-1000" ); |
| 4036 | APFloat expected(APFloat::IEEEdouble(), "0.0" ); |
| 4037 | EXPECT_EQ(APFloat::opOK, f1.remainder(f2)); |
| 4038 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 4039 | } |
| 4040 | { |
| 4041 | APFloat f1 = APFloat::getInf(APFloat::IEEEdouble(), false); |
| 4042 | APFloat f2(APFloat::IEEEdouble(), "1.0" ); |
| 4043 | EXPECT_EQ(f1.remainder(f2), APFloat::opInvalidOp); |
| 4044 | EXPECT_TRUE(f1.isNaN()); |
| 4045 | } |
| 4046 | { |
| 4047 | APFloat f1(APFloat::IEEEdouble(), "-4.0" ); |
| 4048 | APFloat f2(APFloat::IEEEdouble(), "-2.0" ); |
| 4049 | APFloat expected(APFloat::IEEEdouble(), "-0.0" ); |
| 4050 | EXPECT_EQ(APFloat::opOK, f1.remainder(f2)); |
| 4051 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 4052 | } |
| 4053 | { |
| 4054 | APFloat f1(APFloat::IEEEdouble(), "-4.0" ); |
| 4055 | APFloat f2(APFloat::IEEEdouble(), "2.0" ); |
| 4056 | APFloat expected(APFloat::IEEEdouble(), "-0.0" ); |
| 4057 | EXPECT_EQ(APFloat::opOK, f1.remainder(f2)); |
| 4058 | EXPECT_TRUE(f1.bitwiseIsEqual(expected)); |
| 4059 | } |
| 4060 | } |
| 4061 | |
| 4062 | TEST(APFloatTest, PPCDoubleDoubleAddSpecial) { |
| 4063 | using DataType = std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, |
| 4064 | APFloat::fltCategory, APFloat::roundingMode>; |
| 4065 | DataType Data[] = { |
| 4066 | // (1 + 0) + (-1 + 0) = fcZero |
| 4067 | std::make_tuple(0x3ff0000000000000ull, 0, 0xbff0000000000000ull, 0, |
| 4068 | APFloat::fcZero, APFloat::rmNearestTiesToEven), |
| 4069 | // LDBL_MAX + (1.1 >> (1023 - 106) + 0)) = fcInfinity |
| 4070 | std::make_tuple(0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4071 | 0x7948000000000000ull, 0ull, APFloat::fcInfinity, |
| 4072 | APFloat::rmNearestTiesToEven), |
| 4073 | // TODO: change the 4th 0x75effffffffffffe to 0x75efffffffffffff when |
| 4074 | // semPPCDoubleDoubleLegacy is gone. |
| 4075 | // LDBL_MAX + (1.011111... >> (1023 - 106) + (1.1111111...0 >> (1023 - |
| 4076 | // 160))) = fcNormal |
| 4077 | std::make_tuple(0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4078 | 0x7947ffffffffffffull, 0x75effffffffffffeull, |
| 4079 | APFloat::fcNormal, APFloat::rmNearestTiesToEven), |
| 4080 | // LDBL_MAX + (1.1 >> (1023 - 106) + 0)) = fcInfinity |
| 4081 | std::make_tuple(0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4082 | 0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4083 | APFloat::fcInfinity, APFloat::rmNearestTiesToEven), |
| 4084 | // NaN + (1 + 0) = fcNaN |
| 4085 | std::make_tuple(0x7ff8000000000000ull, 0, 0x3ff0000000000000ull, 0, |
| 4086 | APFloat::fcNaN, APFloat::rmNearestTiesToEven), |
| 4087 | }; |
| 4088 | |
| 4089 | for (auto Tp : Data) { |
| 4090 | uint64_t Op1[2], Op2[2]; |
| 4091 | APFloat::fltCategory Expected; |
| 4092 | APFloat::roundingMode RM; |
| 4093 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected, RM) = Tp; |
| 4094 | |
| 4095 | { |
| 4096 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4097 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4098 | A1.add(A2, RM); |
| 4099 | |
| 4100 | EXPECT_EQ(Expected, A1.getCategory()) |
| 4101 | << formatv("({0:x} + {1:x}) + ({2:x} + {3:x})" , Op1[0], Op1[1], |
| 4102 | Op2[0], Op2[1]) |
| 4103 | .str(); |
| 4104 | } |
| 4105 | { |
| 4106 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4107 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4108 | A2.add(A1, RM); |
| 4109 | |
| 4110 | EXPECT_EQ(Expected, A2.getCategory()) |
| 4111 | << formatv("({0:x} + {1:x}) + ({2:x} + {3:x})" , Op2[0], Op2[1], |
| 4112 | Op1[0], Op1[1]) |
| 4113 | .str(); |
| 4114 | } |
| 4115 | } |
| 4116 | } |
| 4117 | |
| 4118 | TEST(APFloatTest, PPCDoubleDoubleAdd) { |
| 4119 | using DataType = std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, |
| 4120 | uint64_t, APFloat::roundingMode>; |
| 4121 | DataType Data[] = { |
| 4122 | // (1 + 0) + (1e-105 + 0) = (1 + 1e-105) |
| 4123 | std::make_tuple(0x3ff0000000000000ull, 0, 0x3960000000000000ull, 0, |
| 4124 | 0x3ff0000000000000ull, 0x3960000000000000ull, |
| 4125 | APFloat::rmNearestTiesToEven), |
| 4126 | // (1 + 0) + (1e-106 + 0) = (1 + 1e-106) |
| 4127 | std::make_tuple(0x3ff0000000000000ull, 0, 0x3950000000000000ull, 0, |
| 4128 | 0x3ff0000000000000ull, 0x3950000000000000ull, |
| 4129 | APFloat::rmNearestTiesToEven), |
| 4130 | // (1 + 1e-106) + (1e-106 + 0) = (1 + 1e-105) |
| 4131 | std::make_tuple(0x3ff0000000000000ull, 0x3950000000000000ull, |
| 4132 | 0x3950000000000000ull, 0, 0x3ff0000000000000ull, |
| 4133 | 0x3960000000000000ull, APFloat::rmNearestTiesToEven), |
| 4134 | // (1 + 0) + (epsilon + 0) = (1 + epsilon) |
| 4135 | std::make_tuple(0x3ff0000000000000ull, 0, 0x0000000000000001ull, 0, |
| 4136 | 0x3ff0000000000000ull, 0x0000000000000001ull, |
| 4137 | APFloat::rmNearestTiesToEven), |
| 4138 | // TODO: change 0xf950000000000000 to 0xf940000000000000, when |
| 4139 | // semPPCDoubleDoubleLegacy is gone. |
| 4140 | // (DBL_MAX - 1 << (1023 - 105)) + (1 << (1023 - 53) + 0) = DBL_MAX + |
| 4141 | // 1.11111... << (1023 - 52) |
| 4142 | std::make_tuple(0x7fefffffffffffffull, 0xf950000000000000ull, |
| 4143 | 0x7c90000000000000ull, 0, 0x7fefffffffffffffull, |
| 4144 | 0x7c8ffffffffffffeull, APFloat::rmNearestTiesToEven), |
| 4145 | // TODO: change 0xf950000000000000 to 0xf940000000000000, when |
| 4146 | // semPPCDoubleDoubleLegacy is gone. |
| 4147 | // (1 << (1023 - 53) + 0) + (DBL_MAX - 1 << (1023 - 105)) = DBL_MAX + |
| 4148 | // 1.11111... << (1023 - 52) |
| 4149 | std::make_tuple(0x7c90000000000000ull, 0, 0x7fefffffffffffffull, |
| 4150 | 0xf950000000000000ull, 0x7fefffffffffffffull, |
| 4151 | 0x7c8ffffffffffffeull, APFloat::rmNearestTiesToEven), |
| 4152 | }; |
| 4153 | |
| 4154 | for (auto Tp : Data) { |
| 4155 | uint64_t Op1[2], Op2[2], Expected[2]; |
| 4156 | APFloat::roundingMode RM; |
| 4157 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected[0], Expected[1], RM) = Tp; |
| 4158 | |
| 4159 | { |
| 4160 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4161 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4162 | A1.add(A2, RM); |
| 4163 | |
| 4164 | EXPECT_EQ(Expected[0], A1.bitcastToAPInt().getRawData()[0]) |
| 4165 | << formatv("({0:x} + {1:x}) + ({2:x} + {3:x})" , Op1[0], Op1[1], |
| 4166 | Op2[0], Op2[1]) |
| 4167 | .str(); |
| 4168 | EXPECT_EQ(Expected[1], A1.bitcastToAPInt().getRawData()[1]) |
| 4169 | << formatv("({0:x} + {1:x}) + ({2:x} + {3:x})" , Op1[0], Op1[1], |
| 4170 | Op2[0], Op2[1]) |
| 4171 | .str(); |
| 4172 | } |
| 4173 | { |
| 4174 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4175 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4176 | A2.add(A1, RM); |
| 4177 | |
| 4178 | EXPECT_EQ(Expected[0], A2.bitcastToAPInt().getRawData()[0]) |
| 4179 | << formatv("({0:x} + {1:x}) + ({2:x} + {3:x})" , Op2[0], Op2[1], |
| 4180 | Op1[0], Op1[1]) |
| 4181 | .str(); |
| 4182 | EXPECT_EQ(Expected[1], A2.bitcastToAPInt().getRawData()[1]) |
| 4183 | << formatv("({0:x} + {1:x}) + ({2:x} + {3:x})" , Op2[0], Op2[1], |
| 4184 | Op1[0], Op1[1]) |
| 4185 | .str(); |
| 4186 | } |
| 4187 | } |
| 4188 | } |
| 4189 | |
| 4190 | TEST(APFloatTest, PPCDoubleDoubleSubtract) { |
| 4191 | using DataType = std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, |
| 4192 | uint64_t, APFloat::roundingMode>; |
| 4193 | DataType Data[] = { |
| 4194 | // (1 + 0) - (-1e-105 + 0) = (1 + 1e-105) |
| 4195 | std::make_tuple(0x3ff0000000000000ull, 0, 0xb960000000000000ull, 0, |
| 4196 | 0x3ff0000000000000ull, 0x3960000000000000ull, |
| 4197 | APFloat::rmNearestTiesToEven), |
| 4198 | // (1 + 0) - (-1e-106 + 0) = (1 + 1e-106) |
| 4199 | std::make_tuple(0x3ff0000000000000ull, 0, 0xb950000000000000ull, 0, |
| 4200 | 0x3ff0000000000000ull, 0x3950000000000000ull, |
| 4201 | APFloat::rmNearestTiesToEven), |
| 4202 | }; |
| 4203 | |
| 4204 | for (auto Tp : Data) { |
| 4205 | uint64_t Op1[2], Op2[2], Expected[2]; |
| 4206 | APFloat::roundingMode RM; |
| 4207 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected[0], Expected[1], RM) = Tp; |
| 4208 | |
| 4209 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4210 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4211 | A1.subtract(A2, RM); |
| 4212 | |
| 4213 | EXPECT_EQ(Expected[0], A1.bitcastToAPInt().getRawData()[0]) |
| 4214 | << formatv("({0:x} + {1:x}) - ({2:x} + {3:x})" , Op1[0], Op1[1], Op2[0], |
| 4215 | Op2[1]) |
| 4216 | .str(); |
| 4217 | EXPECT_EQ(Expected[1], A1.bitcastToAPInt().getRawData()[1]) |
| 4218 | << formatv("({0:x} + {1:x}) - ({2:x} + {3:x})" , Op1[0], Op1[1], Op2[0], |
| 4219 | Op2[1]) |
| 4220 | .str(); |
| 4221 | } |
| 4222 | } |
| 4223 | |
| 4224 | TEST(APFloatTest, PPCDoubleDoubleMultiplySpecial) { |
| 4225 | using DataType = std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, |
| 4226 | APFloat::fltCategory, APFloat::roundingMode>; |
| 4227 | DataType Data[] = { |
| 4228 | // fcNaN * fcNaN = fcNaN |
| 4229 | std::make_tuple(0x7ff8000000000000ull, 0, 0x7ff8000000000000ull, 0, |
| 4230 | APFloat::fcNaN, APFloat::rmNearestTiesToEven), |
| 4231 | // fcNaN * fcZero = fcNaN |
| 4232 | std::make_tuple(0x7ff8000000000000ull, 0, 0, 0, APFloat::fcNaN, |
| 4233 | APFloat::rmNearestTiesToEven), |
| 4234 | // fcNaN * fcInfinity = fcNaN |
| 4235 | std::make_tuple(0x7ff8000000000000ull, 0, 0x7ff0000000000000ull, 0, |
| 4236 | APFloat::fcNaN, APFloat::rmNearestTiesToEven), |
| 4237 | // fcNaN * fcNormal = fcNaN |
| 4238 | std::make_tuple(0x7ff8000000000000ull, 0, 0x3ff0000000000000ull, 0, |
| 4239 | APFloat::fcNaN, APFloat::rmNearestTiesToEven), |
| 4240 | // fcInfinity * fcInfinity = fcInfinity |
| 4241 | std::make_tuple(0x7ff0000000000000ull, 0, 0x7ff0000000000000ull, 0, |
| 4242 | APFloat::fcInfinity, APFloat::rmNearestTiesToEven), |
| 4243 | // fcInfinity * fcZero = fcNaN |
| 4244 | std::make_tuple(0x7ff0000000000000ull, 0, 0, 0, APFloat::fcNaN, |
| 4245 | APFloat::rmNearestTiesToEven), |
| 4246 | // fcInfinity * fcNormal = fcInfinity |
| 4247 | std::make_tuple(0x7ff0000000000000ull, 0, 0x3ff0000000000000ull, 0, |
| 4248 | APFloat::fcInfinity, APFloat::rmNearestTiesToEven), |
| 4249 | // fcZero * fcZero = fcZero |
| 4250 | std::make_tuple(0, 0, 0, 0, APFloat::fcZero, |
| 4251 | APFloat::rmNearestTiesToEven), |
| 4252 | // fcZero * fcNormal = fcZero |
| 4253 | std::make_tuple(0, 0, 0x3ff0000000000000ull, 0, APFloat::fcZero, |
| 4254 | APFloat::rmNearestTiesToEven), |
| 4255 | }; |
| 4256 | |
| 4257 | for (auto Tp : Data) { |
| 4258 | uint64_t Op1[2], Op2[2]; |
| 4259 | APFloat::fltCategory Expected; |
| 4260 | APFloat::roundingMode RM; |
| 4261 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected, RM) = Tp; |
| 4262 | |
| 4263 | { |
| 4264 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4265 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4266 | A1.multiply(A2, RM); |
| 4267 | |
| 4268 | EXPECT_EQ(Expected, A1.getCategory()) |
| 4269 | << formatv("({0:x} + {1:x}) * ({2:x} + {3:x})" , Op1[0], Op1[1], |
| 4270 | Op2[0], Op2[1]) |
| 4271 | .str(); |
| 4272 | } |
| 4273 | { |
| 4274 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4275 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4276 | A2.multiply(A1, RM); |
| 4277 | |
| 4278 | EXPECT_EQ(Expected, A2.getCategory()) |
| 4279 | << formatv("({0:x} + {1:x}) * ({2:x} + {3:x})" , Op2[0], Op2[1], |
| 4280 | Op1[0], Op1[1]) |
| 4281 | .str(); |
| 4282 | } |
| 4283 | } |
| 4284 | } |
| 4285 | |
| 4286 | TEST(APFloatTest, PPCDoubleDoubleMultiply) { |
| 4287 | using DataType = std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, |
| 4288 | uint64_t, APFloat::roundingMode>; |
| 4289 | DataType Data[] = { |
| 4290 | // 1/3 * 3 = 1.0 |
| 4291 | std::make_tuple(0x3fd5555555555555ull, 0x3c75555555555556ull, |
| 4292 | 0x4008000000000000ull, 0, 0x3ff0000000000000ull, 0, |
| 4293 | APFloat::rmNearestTiesToEven), |
| 4294 | // (1 + epsilon) * (1 + 0) = fcZero |
| 4295 | std::make_tuple(0x3ff0000000000000ull, 0x0000000000000001ull, |
| 4296 | 0x3ff0000000000000ull, 0, 0x3ff0000000000000ull, |
| 4297 | 0x0000000000000001ull, APFloat::rmNearestTiesToEven), |
| 4298 | // (1 + epsilon) * (1 + epsilon) = 1 + 2 * epsilon |
| 4299 | std::make_tuple(0x3ff0000000000000ull, 0x0000000000000001ull, |
| 4300 | 0x3ff0000000000000ull, 0x0000000000000001ull, |
| 4301 | 0x3ff0000000000000ull, 0x0000000000000002ull, |
| 4302 | APFloat::rmNearestTiesToEven), |
| 4303 | // -(1 + epsilon) * (1 + epsilon) = -1 |
| 4304 | std::make_tuple(0xbff0000000000000ull, 0x0000000000000001ull, |
| 4305 | 0x3ff0000000000000ull, 0x0000000000000001ull, |
| 4306 | 0xbff0000000000000ull, 0, APFloat::rmNearestTiesToEven), |
| 4307 | // (0.5 + 0) * (1 + 2 * epsilon) = 0.5 + epsilon |
| 4308 | std::make_tuple(0x3fe0000000000000ull, 0, 0x3ff0000000000000ull, |
| 4309 | 0x0000000000000002ull, 0x3fe0000000000000ull, |
| 4310 | 0x0000000000000001ull, APFloat::rmNearestTiesToEven), |
| 4311 | // (0.5 + 0) * (1 + epsilon) = 0.5 |
| 4312 | std::make_tuple(0x3fe0000000000000ull, 0, 0x3ff0000000000000ull, |
| 4313 | 0x0000000000000001ull, 0x3fe0000000000000ull, 0, |
| 4314 | APFloat::rmNearestTiesToEven), |
| 4315 | // __LDBL_MAX__ * (1 + 1 << 106) = inf |
| 4316 | std::make_tuple(0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4317 | 0x3ff0000000000000ull, 0x3950000000000000ull, |
| 4318 | 0x7ff0000000000000ull, 0, APFloat::rmNearestTiesToEven), |
| 4319 | // __LDBL_MAX__ * (1 + 1 << 107) > __LDBL_MAX__, but not inf, yes =_=||| |
| 4320 | std::make_tuple(0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4321 | 0x3ff0000000000000ull, 0x3940000000000000ull, |
| 4322 | 0x7fefffffffffffffull, 0x7c8fffffffffffffull, |
| 4323 | APFloat::rmNearestTiesToEven), |
| 4324 | // __LDBL_MAX__ * (1 + 1 << 108) = __LDBL_MAX__ |
| 4325 | std::make_tuple(0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4326 | 0x3ff0000000000000ull, 0x3930000000000000ull, |
| 4327 | 0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4328 | APFloat::rmNearestTiesToEven), |
| 4329 | }; |
| 4330 | |
| 4331 | for (auto Tp : Data) { |
| 4332 | uint64_t Op1[2], Op2[2], Expected[2]; |
| 4333 | APFloat::roundingMode RM; |
| 4334 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected[0], Expected[1], RM) = Tp; |
| 4335 | |
| 4336 | { |
| 4337 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4338 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4339 | A1.multiply(A2, RM); |
| 4340 | |
| 4341 | EXPECT_EQ(Expected[0], A1.bitcastToAPInt().getRawData()[0]) |
| 4342 | << formatv("({0:x} + {1:x}) * ({2:x} + {3:x})" , Op1[0], Op1[1], |
| 4343 | Op2[0], Op2[1]) |
| 4344 | .str(); |
| 4345 | EXPECT_EQ(Expected[1], A1.bitcastToAPInt().getRawData()[1]) |
| 4346 | << formatv("({0:x} + {1:x}) * ({2:x} + {3:x})" , Op1[0], Op1[1], |
| 4347 | Op2[0], Op2[1]) |
| 4348 | .str(); |
| 4349 | } |
| 4350 | { |
| 4351 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4352 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4353 | A2.multiply(A1, RM); |
| 4354 | |
| 4355 | EXPECT_EQ(Expected[0], A2.bitcastToAPInt().getRawData()[0]) |
| 4356 | << formatv("({0:x} + {1:x}) * ({2:x} + {3:x})" , Op2[0], Op2[1], |
| 4357 | Op1[0], Op1[1]) |
| 4358 | .str(); |
| 4359 | EXPECT_EQ(Expected[1], A2.bitcastToAPInt().getRawData()[1]) |
| 4360 | << formatv("({0:x} + {1:x}) * ({2:x} + {3:x})" , Op2[0], Op2[1], |
| 4361 | Op1[0], Op1[1]) |
| 4362 | .str(); |
| 4363 | } |
| 4364 | } |
| 4365 | } |
| 4366 | |
| 4367 | TEST(APFloatTest, PPCDoubleDoubleDivide) { |
| 4368 | using DataType = std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, |
| 4369 | uint64_t, APFloat::roundingMode>; |
| 4370 | // TODO: Only a sanity check for now. Add more edge cases when the |
| 4371 | // double-double algorithm is implemented. |
| 4372 | DataType Data[] = { |
| 4373 | // 1 / 3 = 1/3 |
| 4374 | std::make_tuple(0x3ff0000000000000ull, 0, 0x4008000000000000ull, 0, |
| 4375 | 0x3fd5555555555555ull, 0x3c75555555555556ull, |
| 4376 | APFloat::rmNearestTiesToEven), |
| 4377 | }; |
| 4378 | |
| 4379 | for (auto Tp : Data) { |
| 4380 | uint64_t Op1[2], Op2[2], Expected[2]; |
| 4381 | APFloat::roundingMode RM; |
| 4382 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected[0], Expected[1], RM) = Tp; |
| 4383 | |
| 4384 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4385 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4386 | A1.divide(A2, RM); |
| 4387 | |
| 4388 | EXPECT_EQ(Expected[0], A1.bitcastToAPInt().getRawData()[0]) |
| 4389 | << formatv("({0:x} + {1:x}) / ({2:x} + {3:x})" , Op1[0], Op1[1], Op2[0], |
| 4390 | Op2[1]) |
| 4391 | .str(); |
| 4392 | EXPECT_EQ(Expected[1], A1.bitcastToAPInt().getRawData()[1]) |
| 4393 | << formatv("({0:x} + {1:x}) / ({2:x} + {3:x})" , Op1[0], Op1[1], Op2[0], |
| 4394 | Op2[1]) |
| 4395 | .str(); |
| 4396 | } |
| 4397 | } |
| 4398 | |
| 4399 | TEST(APFloatTest, PPCDoubleDoubleRemainder) { |
| 4400 | using DataType = |
| 4401 | std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, uint64_t>; |
| 4402 | DataType Data[] = { |
| 4403 | // remainder(3.0 + 3.0 << 53, 1.25 + 1.25 << 53) = (0.5 + 0.5 << 53) |
| 4404 | std::make_tuple(0x4008000000000000ull, 0x3cb8000000000000ull, |
| 4405 | 0x3ff4000000000000ull, 0x3ca4000000000000ull, |
| 4406 | 0x3fe0000000000000ull, 0x3c90000000000000ull), |
| 4407 | // remainder(3.0 + 3.0 << 53, 1.75 + 1.75 << 53) = (-0.5 - 0.5 << 53) |
| 4408 | std::make_tuple(0x4008000000000000ull, 0x3cb8000000000000ull, |
| 4409 | 0x3ffc000000000000ull, 0x3cac000000000000ull, |
| 4410 | 0xbfe0000000000000ull, 0xbc90000000000000ull), |
| 4411 | }; |
| 4412 | |
| 4413 | for (auto Tp : Data) { |
| 4414 | uint64_t Op1[2], Op2[2], Expected[2]; |
| 4415 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected[0], Expected[1]) = Tp; |
| 4416 | |
| 4417 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4418 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4419 | A1.remainder(A2); |
| 4420 | |
| 4421 | EXPECT_EQ(Expected[0], A1.bitcastToAPInt().getRawData()[0]) |
| 4422 | << formatv("remainder({0:x} + {1:x}), ({2:x} + {3:x}))" , Op1[0], Op1[1], |
| 4423 | Op2[0], Op2[1]) |
| 4424 | .str(); |
| 4425 | EXPECT_EQ(Expected[1], A1.bitcastToAPInt().getRawData()[1]) |
| 4426 | << formatv("remainder(({0:x} + {1:x}), ({2:x} + {3:x}))" , Op1[0], |
| 4427 | Op1[1], Op2[0], Op2[1]) |
| 4428 | .str(); |
| 4429 | } |
| 4430 | } |
| 4431 | |
| 4432 | TEST(APFloatTest, PPCDoubleDoubleMod) { |
| 4433 | using DataType = |
| 4434 | std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, uint64_t>; |
| 4435 | DataType Data[] = { |
| 4436 | // mod(3.0 + 3.0 << 53, 1.25 + 1.25 << 53) = (0.5 + 0.5 << 53) |
| 4437 | std::make_tuple(0x4008000000000000ull, 0x3cb8000000000000ull, |
| 4438 | 0x3ff4000000000000ull, 0x3ca4000000000000ull, |
| 4439 | 0x3fe0000000000000ull, 0x3c90000000000000ull), |
| 4440 | // mod(3.0 + 3.0 << 53, 1.75 + 1.75 << 53) = (1.25 + 1.25 << 53) |
| 4441 | // 0xbc98000000000000 doesn't seem right, but it's what we currently have. |
| 4442 | // TODO: investigate |
| 4443 | std::make_tuple(0x4008000000000000ull, 0x3cb8000000000000ull, |
| 4444 | 0x3ffc000000000000ull, 0x3cac000000000000ull, |
| 4445 | 0x3ff4000000000001ull, 0xbc98000000000000ull), |
| 4446 | }; |
| 4447 | |
| 4448 | for (auto Tp : Data) { |
| 4449 | uint64_t Op1[2], Op2[2], Expected[2]; |
| 4450 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected[0], Expected[1]) = Tp; |
| 4451 | |
| 4452 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4453 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4454 | A1.mod(A2); |
| 4455 | |
| 4456 | EXPECT_EQ(Expected[0], A1.bitcastToAPInt().getRawData()[0]) |
| 4457 | << formatv("fmod(({0:x} + {1:x}), ({2:x} + {3:x}))" , Op1[0], Op1[1], |
| 4458 | Op2[0], Op2[1]) |
| 4459 | .str(); |
| 4460 | EXPECT_EQ(Expected[1], A1.bitcastToAPInt().getRawData()[1]) |
| 4461 | << formatv("fmod(({0:x} + {1:x}), ({2:x} + {3:x}))" , Op1[0], Op1[1], |
| 4462 | Op2[0], Op2[1]) |
| 4463 | .str(); |
| 4464 | } |
| 4465 | } |
| 4466 | |
| 4467 | TEST(APFloatTest, PPCDoubleDoubleFMA) { |
| 4468 | // Sanity check for now. |
| 4469 | APFloat A(APFloat::PPCDoubleDouble(), "2" ); |
| 4470 | A.fusedMultiplyAdd(APFloat(APFloat::PPCDoubleDouble(), "3" ), |
| 4471 | APFloat(APFloat::PPCDoubleDouble(), "4" ), |
| 4472 | APFloat::rmNearestTiesToEven); |
| 4473 | EXPECT_EQ(APFloat::cmpEqual, |
| 4474 | APFloat(APFloat::PPCDoubleDouble(), "10" ).compare(A)); |
| 4475 | } |
| 4476 | |
| 4477 | TEST(APFloatTest, PPCDoubleDoubleRoundToIntegral) { |
| 4478 | { |
| 4479 | APFloat A(APFloat::PPCDoubleDouble(), "1.5" ); |
| 4480 | A.roundToIntegral(APFloat::rmNearestTiesToEven); |
| 4481 | EXPECT_EQ(APFloat::cmpEqual, |
| 4482 | APFloat(APFloat::PPCDoubleDouble(), "2" ).compare(A)); |
| 4483 | } |
| 4484 | { |
| 4485 | APFloat A(APFloat::PPCDoubleDouble(), "2.5" ); |
| 4486 | A.roundToIntegral(APFloat::rmNearestTiesToEven); |
| 4487 | EXPECT_EQ(APFloat::cmpEqual, |
| 4488 | APFloat(APFloat::PPCDoubleDouble(), "2" ).compare(A)); |
| 4489 | } |
| 4490 | } |
| 4491 | |
| 4492 | TEST(APFloatTest, PPCDoubleDoubleCompare) { |
| 4493 | using DataType = |
| 4494 | std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, APFloat::cmpResult>; |
| 4495 | |
| 4496 | DataType Data[] = { |
| 4497 | // (1 + 0) = (1 + 0) |
| 4498 | std::make_tuple(0x3ff0000000000000ull, 0, 0x3ff0000000000000ull, 0, |
| 4499 | APFloat::cmpEqual), |
| 4500 | // (1 + 0) < (1.00...1 + 0) |
| 4501 | std::make_tuple(0x3ff0000000000000ull, 0, 0x3ff0000000000001ull, 0, |
| 4502 | APFloat::cmpLessThan), |
| 4503 | // (1.00...1 + 0) > (1 + 0) |
| 4504 | std::make_tuple(0x3ff0000000000001ull, 0, 0x3ff0000000000000ull, 0, |
| 4505 | APFloat::cmpGreaterThan), |
| 4506 | // (1 + 0) < (1 + epsilon) |
| 4507 | std::make_tuple(0x3ff0000000000000ull, 0, 0x3ff0000000000001ull, |
| 4508 | 0x0000000000000001ull, APFloat::cmpLessThan), |
| 4509 | // NaN != NaN |
| 4510 | std::make_tuple(0x7ff8000000000000ull, 0, 0x7ff8000000000000ull, 0, |
| 4511 | APFloat::cmpUnordered), |
| 4512 | // (1 + 0) != NaN |
| 4513 | std::make_tuple(0x3ff0000000000000ull, 0, 0x7ff8000000000000ull, 0, |
| 4514 | APFloat::cmpUnordered), |
| 4515 | // Inf = Inf |
| 4516 | std::make_tuple(0x7ff0000000000000ull, 0, 0x7ff0000000000000ull, 0, |
| 4517 | APFloat::cmpEqual), |
| 4518 | }; |
| 4519 | |
| 4520 | for (auto Tp : Data) { |
| 4521 | uint64_t Op1[2], Op2[2]; |
| 4522 | APFloat::cmpResult Expected; |
| 4523 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected) = Tp; |
| 4524 | |
| 4525 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4526 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4527 | EXPECT_EQ(Expected, A1.compare(A2)) |
| 4528 | << formatv("compare(({0:x} + {1:x}), ({2:x} + {3:x}))" , Op1[0], Op1[1], |
| 4529 | Op2[0], Op2[1]) |
| 4530 | .str(); |
| 4531 | } |
| 4532 | } |
| 4533 | |
| 4534 | TEST(APFloatTest, PPCDoubleDoubleBitwiseIsEqual) { |
| 4535 | using DataType = std::tuple<uint64_t, uint64_t, uint64_t, uint64_t, bool>; |
| 4536 | |
| 4537 | DataType Data[] = { |
| 4538 | // (1 + 0) = (1 + 0) |
| 4539 | std::make_tuple(0x3ff0000000000000ull, 0, 0x3ff0000000000000ull, 0, true), |
| 4540 | // (1 + 0) != (1.00...1 + 0) |
| 4541 | std::make_tuple(0x3ff0000000000000ull, 0, 0x3ff0000000000001ull, 0, |
| 4542 | false), |
| 4543 | // NaN = NaN |
| 4544 | std::make_tuple(0x7ff8000000000000ull, 0, 0x7ff8000000000000ull, 0, true), |
| 4545 | // NaN != NaN with a different bit pattern |
| 4546 | std::make_tuple(0x7ff8000000000000ull, 0, 0x7ff8000000000000ull, |
| 4547 | 0x3ff0000000000000ull, false), |
| 4548 | // Inf = Inf |
| 4549 | std::make_tuple(0x7ff0000000000000ull, 0, 0x7ff0000000000000ull, 0, true), |
| 4550 | }; |
| 4551 | |
| 4552 | for (auto Tp : Data) { |
| 4553 | uint64_t Op1[2], Op2[2]; |
| 4554 | bool Expected; |
| 4555 | std::tie(Op1[0], Op1[1], Op2[0], Op2[1], Expected) = Tp; |
| 4556 | |
| 4557 | APFloat A1(APFloat::PPCDoubleDouble(), APInt(128, 2, Op1)); |
| 4558 | APFloat A2(APFloat::PPCDoubleDouble(), APInt(128, 2, Op2)); |
| 4559 | EXPECT_EQ(Expected, A1.bitwiseIsEqual(A2)) |
| 4560 | << formatv("({0:x} + {1:x}) = ({2:x} + {3:x})" , Op1[0], Op1[1], Op2[0], |
| 4561 | Op2[1]) |
| 4562 | .str(); |
| 4563 | } |
| 4564 | } |
| 4565 | |
| 4566 | TEST(APFloatTest, PPCDoubleDoubleHashValue) { |
| 4567 | uint64_t Data1[] = {0x3ff0000000000001ull, 0x0000000000000001ull}; |
| 4568 | uint64_t Data2[] = {0x3ff0000000000001ull, 0}; |
| 4569 | // The hash values are *hopefully* different. |
| 4570 | EXPECT_NE( |
| 4571 | hash_value(APFloat(APFloat::PPCDoubleDouble(), APInt(128, 2, Data1))), |
| 4572 | hash_value(APFloat(APFloat::PPCDoubleDouble(), APInt(128, 2, Data2)))); |
| 4573 | } |
| 4574 | |
| 4575 | TEST(APFloatTest, PPCDoubleDoubleChangeSign) { |
| 4576 | uint64_t Data[] = { |
| 4577 | 0x400f000000000000ull, 0xbcb0000000000000ull, |
| 4578 | }; |
| 4579 | APFloat Float(APFloat::PPCDoubleDouble(), APInt(128, 2, Data)); |
| 4580 | { |
| 4581 | APFloat Actual = |
| 4582 | APFloat::copySign(Float, APFloat(APFloat::IEEEdouble(), "1" )); |
| 4583 | EXPECT_EQ(0x400f000000000000ull, Actual.bitcastToAPInt().getRawData()[0]); |
| 4584 | EXPECT_EQ(0xbcb0000000000000ull, Actual.bitcastToAPInt().getRawData()[1]); |
| 4585 | } |
| 4586 | { |
| 4587 | APFloat Actual = |
| 4588 | APFloat::copySign(Float, APFloat(APFloat::IEEEdouble(), "-1" )); |
| 4589 | EXPECT_EQ(0xc00f000000000000ull, Actual.bitcastToAPInt().getRawData()[0]); |
| 4590 | EXPECT_EQ(0x3cb0000000000000ull, Actual.bitcastToAPInt().getRawData()[1]); |
| 4591 | } |
| 4592 | } |
| 4593 | |
| 4594 | TEST(APFloatTest, PPCDoubleDoubleFactories) { |
| 4595 | { |
| 4596 | uint64_t Data[] = { |
| 4597 | 0, 0, |
| 4598 | }; |
| 4599 | EXPECT_EQ(APInt(128, 2, Data), |
| 4600 | APFloat::getZero(APFloat::PPCDoubleDouble()).bitcastToAPInt()); |
| 4601 | } |
| 4602 | { |
| 4603 | uint64_t Data[] = { |
| 4604 | 0x7fefffffffffffffull, 0x7c8ffffffffffffeull, |
| 4605 | }; |
| 4606 | EXPECT_EQ(APInt(128, 2, Data), |
| 4607 | APFloat::getLargest(APFloat::PPCDoubleDouble()).bitcastToAPInt()); |
| 4608 | } |
| 4609 | { |
| 4610 | uint64_t Data[] = { |
| 4611 | 0x0000000000000001ull, 0, |
| 4612 | }; |
| 4613 | EXPECT_EQ( |
| 4614 | APInt(128, 2, Data), |
| 4615 | APFloat::getSmallest(APFloat::PPCDoubleDouble()).bitcastToAPInt()); |
| 4616 | } |
| 4617 | { |
| 4618 | uint64_t Data[] = {0x0360000000000000ull, 0}; |
| 4619 | EXPECT_EQ(APInt(128, 2, Data), |
| 4620 | APFloat::getSmallestNormalized(APFloat::PPCDoubleDouble()) |
| 4621 | .bitcastToAPInt()); |
| 4622 | } |
| 4623 | { |
| 4624 | uint64_t Data[] = { |
| 4625 | 0x8000000000000000ull, 0x0000000000000000ull, |
| 4626 | }; |
| 4627 | EXPECT_EQ( |
| 4628 | APInt(128, 2, Data), |
| 4629 | APFloat::getZero(APFloat::PPCDoubleDouble(), true).bitcastToAPInt()); |
| 4630 | } |
| 4631 | { |
| 4632 | uint64_t Data[] = { |
| 4633 | 0xffefffffffffffffull, 0xfc8ffffffffffffeull, |
| 4634 | }; |
| 4635 | EXPECT_EQ( |
| 4636 | APInt(128, 2, Data), |
| 4637 | APFloat::getLargest(APFloat::PPCDoubleDouble(), true).bitcastToAPInt()); |
| 4638 | } |
| 4639 | { |
| 4640 | uint64_t Data[] = { |
| 4641 | 0x8000000000000001ull, 0x0000000000000000ull, |
| 4642 | }; |
| 4643 | EXPECT_EQ(APInt(128, 2, Data), |
| 4644 | APFloat::getSmallest(APFloat::PPCDoubleDouble(), true) |
| 4645 | .bitcastToAPInt()); |
| 4646 | } |
| 4647 | { |
| 4648 | uint64_t Data[] = { |
| 4649 | 0x8360000000000000ull, 0x0000000000000000ull, |
| 4650 | }; |
| 4651 | EXPECT_EQ(APInt(128, 2, Data), |
| 4652 | APFloat::getSmallestNormalized(APFloat::PPCDoubleDouble(), true) |
| 4653 | .bitcastToAPInt()); |
| 4654 | } |
| 4655 | EXPECT_TRUE(APFloat::getSmallest(APFloat::PPCDoubleDouble()).isSmallest()); |
| 4656 | EXPECT_TRUE(APFloat::getLargest(APFloat::PPCDoubleDouble()).isLargest()); |
| 4657 | } |
| 4658 | |
| 4659 | TEST(APFloatTest, PPCDoubleDoubleIsDenormal) { |
| 4660 | EXPECT_TRUE(APFloat::getSmallest(APFloat::PPCDoubleDouble()).isDenormal()); |
| 4661 | EXPECT_FALSE(APFloat::getLargest(APFloat::PPCDoubleDouble()).isDenormal()); |
| 4662 | EXPECT_FALSE( |
| 4663 | APFloat::getSmallestNormalized(APFloat::PPCDoubleDouble()).isDenormal()); |
| 4664 | { |
| 4665 | // (4 + 3) is not normalized |
| 4666 | uint64_t Data[] = { |
| 4667 | 0x4010000000000000ull, 0x4008000000000000ull, |
| 4668 | }; |
| 4669 | EXPECT_TRUE( |
| 4670 | APFloat(APFloat::PPCDoubleDouble(), APInt(128, 2, Data)).isDenormal()); |
| 4671 | } |
| 4672 | } |
| 4673 | |
| 4674 | TEST(APFloatTest, PPCDoubleDoubleScalbn) { |
| 4675 | // 3.0 + 3.0 << 53 |
| 4676 | uint64_t Input[] = { |
| 4677 | 0x4008000000000000ull, 0x3cb8000000000000ull, |
| 4678 | }; |
| 4679 | APFloat Result = |
| 4680 | scalbn(APFloat(APFloat::PPCDoubleDouble(), APInt(128, 2, Input)), 1, |
| 4681 | APFloat::rmNearestTiesToEven); |
| 4682 | // 6.0 + 6.0 << 53 |
| 4683 | EXPECT_EQ(0x4018000000000000ull, Result.bitcastToAPInt().getRawData()[0]); |
| 4684 | EXPECT_EQ(0x3cc8000000000000ull, Result.bitcastToAPInt().getRawData()[1]); |
| 4685 | } |
| 4686 | |
| 4687 | TEST(APFloatTest, PPCDoubleDoubleFrexp) { |
| 4688 | // 3.0 + 3.0 << 53 |
| 4689 | uint64_t Input[] = { |
| 4690 | 0x4008000000000000ull, 0x3cb8000000000000ull, |
| 4691 | }; |
| 4692 | int Exp; |
| 4693 | // 0.75 + 0.75 << 53 |
| 4694 | APFloat Result = |
| 4695 | frexp(APFloat(APFloat::PPCDoubleDouble(), APInt(128, 2, Input)), Exp, |
| 4696 | APFloat::rmNearestTiesToEven); |
| 4697 | EXPECT_EQ(2, Exp); |
| 4698 | EXPECT_EQ(0x3fe8000000000000ull, Result.bitcastToAPInt().getRawData()[0]); |
| 4699 | EXPECT_EQ(0x3c98000000000000ull, Result.bitcastToAPInt().getRawData()[1]); |
| 4700 | } |
| 4701 | |
| 4702 | TEST(APFloatTest, x87Largest) { |
| 4703 | APFloat MaxX87Val = APFloat::getLargest(APFloat::x87DoubleExtended()); |
| 4704 | EXPECT_TRUE(MaxX87Val.isLargest()); |
| 4705 | } |
| 4706 | |
| 4707 | TEST(APFloatTest, x87Next) { |
| 4708 | APFloat F(APFloat::x87DoubleExtended(), "-1.0" ); |
| 4709 | F.next(false); |
| 4710 | EXPECT_TRUE(ilogb(F) == -1); |
| 4711 | } |
| 4712 | } |
| 4713 | |